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Wikipedia is a free,
web-based A web application (or web app) is application software that is accessed using a web browser. Web applications are delivered on the World Wide Web to users with an active network connection. History In earlier computing models like client-serve ...
, collaborative and
multilingual Multilingualism is the use of more than one language, either by an individual speaker or by a group of speakers. It is believed that multilingual speakers outnumber monolingual speakers in the world's population. More than half of all E ...
encyclopedia website and project supported by the non-profit
Wikimedia Foundation The Wikimedia Foundation, Inc., or Wikimedia for short and abbreviated as WMF, is an American 501(c)(3) nonprofit organization headquartered in San Francisco, California and registered as a charitable foundation under local laws. Best know ...
. It has more than 48 million articles ( in
English English usually refers to: * English language * English people English may also refer to: Peoples, culture, and language * ''English'', an adjective for something of, from, or related to England ** English national ide ...
) written collaboratively by
volunteers Volunteering is a voluntary act of an individual or group freely giving time and labor for community service. Many volunteers are specifically trained in the areas they work, such as medicine, education, or emergency rescue. Others serve ...
around the world. Almost all of its articles can be edited by anyone with access to the site, and it has about 100,000 regularly active contributors.


What ''type'' of thing is Wikipedia?

*
Reference work A reference work is a work, such as a paper, book or periodical (or their electronic equivalents), to which one can refer for information. The information is intended to be found quickly when needed. Such works are usually ''referred'' to ...
– compendium of information, usually of a specific type, compiled in a book for ease of reference. That is, the information is intended to be quickly found when needed. Reference works are usually referred to for particular pieces of information, rather than read beginning to end. The writing style used in these works is informative; the authors avoid use of the first person, and emphasize facts. ** Encyclopedia – type of reference work or compendium holding a comprehensive summary of information from either all branches of knowledge or a particular branch of knowledge. Encyclopedias are divided into articles or entries, which are usually accessed
alphabetically Alphabetical order is a system whereby character strings are placed in order based on the position of the characters in the conventional ordering of an alphabet. It is one of the methods of collation. In mathematics, a lexicographical order is t ...
by article name. Encyclopedia entries are longer and more detailed than those in most dictionaries. ***
Internet encyclopedia project An encyclopedia (American English) or encyclopædia (British English) is a reference work or compendium providing summaries of knowledge either general or special to a particular field or discipline. Encyclopedias are divided into articles ...
(online encyclopedia) – large database of useful information, accessible via the World Wide Web. *
Database In computing, a database is an organized collection of data stored and accessed electronically. Small databases can be stored on a file system, while large databases are hosted on computer clusters or cloud storage. The design of databases s ...
– organized collection of data. The data is typically organized to model aspects of reality in a way that supports processes requiring information. For example, modelling the availability of rooms in hotels in a way that supports finding a hotel with vacancies. ** Online database – database accessible from a network, including from the Internet (such as on a web page). *
Website A website (also written as a web site) is a collection of web pages and related content that is identified by a common domain name and published on at least one web server. Examples of notable websites are Google, Facebook, Amazon, and Wi ...
– collection of related web pages containing images, videos, or other digital assets. A website is hosted on at least one web server, accessible via a network such as the
Internet The Internet (or internet) is the global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices. It is a '' network of networks'' that consists of private, pub ...
or a private local area network through an Internet address known as a Uniform Resource Locator. All publicly accessible websites collectively constitute the World Wide Web. **
Wiki A wiki ( ) is an online hypertext publication collaboratively edited and managed by its own audience, using a web browser. A typical wiki contains multiple pages for the subjects or scope of the project, and could be either open to the pub ...
– website that allows the creation and editing of any number of interlinked web pages via a web browser using a simplified markup language or a WYSIWYG text editor. Wikis are typically powered by wiki software and are often developed and used collaboratively by multiple users. Examples include community websites, corporate intranets, knowledge management systems, and note services. The software can also be used for personal notetaking. *
Community A community is a social unit (a group of living things) with commonality such as place, norms, religion, values, customs, or identity. Communities may share a sense of place situated in a given geographical area (e.g. a country, village, ...
– group of interacting people with social cohesion, who may share common values. **
Community of action A community of action (CoA), unlike a community of practice (CoP), exists in a situation that is structurally more open, where actors have the possibility of bringing about change. These more open situations might, for example, correspond to collec ...
– community in which participants endeavor collaboratively to bring about change. **
Community of interest A community of interest, or interest-based community, is a community of people who share a common interest or passion. These people exchange ideas and thoughts about the given passion, but may know (or care) little about each other outside this ar ...
– community of people who share a common interest or passion. These people exchange ideas and thoughts about the given passion, but may know (or care) little about each other outside of this area. The common interest on Wikipedia is knowledge. ** Community of purpose – community that serves a functional need, smoothing the path of the member for a limited period surrounding a given activity. For example, researching a topic on Wikipedia.org, buying a car on autobytel.com, or antique collectors on icollector.com or individual. **
Virtual community A virtual community is a social network of individuals who connect through specific social media, potentially crossing geographical and political boundaries in order to pursue mutual interests or goals. Some of the most pervasive virtual communi ...
– social network of individuals who interact through specific media, potentially crossing geographical and political boundaries in order to pursue mutual interests or goals. ***
Online community An online community, also called an internet community or web community, is a community whose members interact with each other primarily via the Internet. Members of the community usually share common interests. For many, online communities may fe ...
– virtual community that exists online and whose members enable its existence through taking part in membership ritual. An online community can take the form of an information system where anyone can post content, such as a Bulletin board system or one where only a restricted number of people can initiate posts, such as Weblogs. **** Wiki community – users, especially the editors, of a particular wiki. *
Collective memory Collective memory refers to the shared pool of memories, knowledge and information of a social group that is significantly associated with the group's identity. The English phrase "collective memory" and the equivalent French phrase "la mémoire c ...
– shared pool of information held in the memories of two or more members of a group.


Implementation of Wikipedia

*Structure of Wikipedia **
List of Wikipedias Wikipedia is a free content, free multilingualism, multilingual open source wiki-based online encyclopedia open collaboration, edited and maintained by a Wikipedia community, community of volunteer editors, started on as an English Wikipedia, E ...
– Wikipedia is implemented in many languages. As of April 2018, there were 304 Wikipedias, of which 294 are
active Active may refer to: Music * ''Active'' (album), a 1992 album by Casiopea * Active Records, a record label Ships * ''Active'' (ship), several commercial ships by that name * HMS ''Active'', the name of various ships of the British Royal ...
. **
Logo of Wikipedia The logo of Wikipedia, a free online encyclopedia, is an unfinished globe constructed from jigsaw pieces—some pieces are missing at the top—each inscribed with a glyph from a different writing system. As displayed on the web pages of the E ...
– unfinished globe constructed from jigsaw pieces—some pieces are still missing at the top—inscribed with glyphs from many different writing systems. ** Articles – written works published in a print or electronic medium. Each Wikipedia is divided into many articles, with each article focusing on a particular topic. *** Types of articles on Wikipedia **** Prose articles – **** Lists – ***** Item lists – ***** Article indexes (on the English Wikipedia) – ***** Outlines (on the English Wikipedia) – *
Content management Content management (CM) is a set of processes and technologies that supports the collection, managing, and publishing of information in any form or medium. When stored and accessed via computers, this information may be more specifically referre ...
on Wikipedia – processes for the collection, managing, and publishing of information on Wikipedia **
Deletionism and inclusionism in Wikipedia Deletionism and inclusionism are opposing philosophies that largely developed within the community of editors of the online encyclopedia Wikipediasite's community. The terms reflect differing opinions on the appropriate scope of the encycloped ...
– opposing philosophies of editors of Wikipedia concerning the appropriate scope of the encyclopedia, and the appropriate point for a topic to be ''included'' as an encyclopedia article or be "deleted". ** Notability in English Wikipedia – metric used to determine topics meriting a dedicated encyclopedia article. It attempts to assess whether a topic has "gained sufficiently significant attention by the world at large and over a period of time" as evidenced by significant coverage in reliable secondary sources that are independent of the topic. **
Reliability of Wikipedia The reliability of Wikipedia concerns the validity, verifiability, and veracity of Wikipedia and its user-generated editing model, particularly its English-language edition. It is written and edited by volunteer editors who generate online ...
– Wikipedia is open to anonymous and collaborative editing, so assessments of its reliability usually include examinations of how quickly false or misleading information is removed. An early study conducted by IBM researchers in 2003—two years following Wikipedia's establishment—found that "vandalism is usually repaired extremely quickly—so quickly that most users will never see its effects" and concluded that Wikipedia had "surprisingly effective self-healing capabilities". **
Vandalism on Wikipedia On Wikipedia, vandalism is editing the project in an intentionally disruptive or malicious manner. Vandalism includes any addition, removal, or modification that is intentionally humorous, nonsensical, a hoax, offensive, libelous or degradin ...
– the act of editing the project in a malicious manner that is intentionally disruptive. Vandalism includes the addition, removal, or other modification of the text or other material that is either humorous, nonsensical, a hoax, spam or promotion of a subject, or that is of an offensive, humiliating, or otherwise degrading in nature. There are various measures taken by Wikipedia to prevent or reduce the amount of vandalism. ** Wiki magic – described by Jimmy Wales as a phenomenon whereby an author may write the beginnings of an article at the end of the day, only to wake up in the morning and find the stub converted into a much more substantial article. *Computer technology that makes Wikipedia work: **Hardware *** Computers – general purpose devices that can be programmed to carry out sets of arithmetic or logical operations automatically. A computer that is used to host server software is called a "server". It takes many servers to make Wikipedia available to the world. These servers are run by the WikiMedia Foundation. **Software – Wikipedia is powered by the following software on WikiMedia Foundation's computers (servers). It takes all of these to make Wikipedia pages available on the World Wide Web: *** Operating systems used on WikiMedia Foundation's servers: **** Ubuntu Server – used on all Wikipedia servers except those used for image file storage **** Solaris – used on Wikipedia's image file storage servers ***
MediaWiki MediaWiki is a free and open-source wiki software. It is used on Wikipedia and almost all other Wikimedia websites, including Wiktionary, Wikimedia Commons and Wikidata; these sites define a large part of the requirement set for MediaWi ...
– main web application that makes Wikipedia work. It's a free web-based wiki software application developed by the Wikimedia Foundation (WMF), written in PHP, that is used to run all of WMF's projects, including Wikipedia. Numerous other wikis around the world also use it. *** Content storage – Wikipedia's content (it's articles and other pages) are stored in
MariaDB MariaDB is a community-developed, commercially supported fork of the MySQL relational database management system (RDBMS), intended to remain free and open-source software under the GNU General Public License. Development is led by some of the ori ...
databases. WikiMedia Foundation's wikis are grouped into clusters, and each cluster is served by several MariaDB servers, in a single-master configuration. *** Distributed object storage – distributed objects are software modules that are designed to work together, but reside either in multiple computers connected via a network. One object sends a message to another object in a remote machine to perform some task. **** Ceph – ****
Swift Swift or SWIFT most commonly refers to: * SWIFT, an international organization facilitating transactions between banks ** SWIFT code * Swift (programming language) * Swift (bird), a family of birds It may also refer to: Organizations * SWIFT, ...
– ***
Proxy server In computer networking, a proxy server is a server application that acts as an intermediary between a client requesting a resource and the server providing that resource. Instead of connecting directly to a server that can fulfill a reques ...
s – act as an intermediary for requests from clients seeking resources from other servers. A client connects to the proxy server, requesting some service, such as a file, connection, web page, or other resource available from a different server and the proxy server evaluates the request as a way to simplify and control its complexity. Proxies were invented to add structure and encapsulation to distributed systems. Today, most proxies are web proxies, facilitating access to content on the World Wide Web. The proxy servers used for Wikipedia are: **** For serving up HTML pages – Squid and Varnish caching proxy servers in front of Apache HTTP Server. Apache processes requests via HTTP, the basic network protocol used to distribute information on the World Wide Web. **** For serving up image files – Squid and Varnish caching proxy servers in front o
Sun Java System Web Server
**** DNS proxies – WikiMedia Foundation's DNS proxy servers run
PowerDNS PowerDNS is a DNS server program, written in C++ and licensed under the GPL. It runs on most Unix derivatives. PowerDNS features a large number of different ''backends'' ranging from simple BIND style zonefiles to relational databases and lo ...
. It's a DNS server program that runs under Unix (including Ubuntu). DNS stands for "domain name system". **** Load balancing – *****
Linux Virtual Server Linux Virtual Server (LVS) is load balancing software for Linux kernel–based operating systems. LVS is a free and open-source project started by Wensong Zhang in May 1998, subject to the requirements of the GNU General Public License (GPL ...
(LVS) – Wikipedia uses LVS on commodity servers to load-balance incoming requests. LVS is also used as an internal load balancer to distribute
MediaWiki MediaWiki is a free and open-source wiki software. It is used on Wikipedia and almost all other Wikimedia websites, including Wiktionary, Wikimedia Commons and Wikidata; these sites define a large part of the requirement set for MediaWi ...
and
Lucene Apache Lucene is a free and open-source search engine software library, originally written in Java by Doug Cutting. It is supported by the Apache Software Foundation and is released under the Apache Software License. Lucene is widely used as ...
back-end requests. ***** /wikitech.wikimedia.org/view/PyBal PyBal– Wikimedia Foundation's own system for back-end monitoring and failover. *** Caching ****
Memcached Memcached (pronounced variously ''mem-cash-dee'' or ''mem-cashed'') is a general-purpose distributed memory-caching system. It is often used to speed up dynamic database-driven websites by caching data and objects in RAM to reduce the number of ...
– Wikipedia uses
Memcached Memcached (pronounced variously ''mem-cash-dee'' or ''mem-cashed'') is a general-purpose distributed memory-caching system. It is often used to speed up dynamic database-driven websites by caching data and objects in RAM to reduce the number of ...
for caching of database query and computation results. *** For full-text search – Wikipedia uses
Lucene Apache Lucene is a free and open-source search engine software library, originally written in Java by Doug Cutting. It is supported by the Apache Software Foundation and is released under the Apache Software License. Lucene is widely used as ...
, with extensive customization contributed by Robert Stojnic. *** Wikimedia configuration files **Setting up Wikipedia on a home computer *** Downloading Wikipedia's database (all article text) **
Installing MediaWiki
(the software that runs Wikipedia)


Wikipedia community

* Community of Wikipedia – loosely-knit network of volunteers, sometimes known as "Wikipedians", who make contributions to the online encyclopedia, Wikipedia. A hierarchy exists whereby certain editors are elected to be given greater editorial control by other community members. **
Volunteering Volunteering is a voluntary act of an individual or group freely giving time and labor for community service. Many volunteers are specifically trained in the areas they work, such as medicine, education, or emergency rescue. Others serv ...
– altruistic activity, intended to promote good or improve human quality of life, but people also volunteer for their own skill development, to meet others, to make contacts for possible employment, to have fun, and a variety of other reasons that could be considered self-serving. Volunteerism is the act of selflessly giving your life to something you believe free of pay. Wikipedia is written entirely by volunteers. ***
Virtual volunteering Virtual volunteering refers to volunteer activities completed, in whole or in part, using the Internet and a home, school, telecenter, or work computer or other Internet-connected device, such as a smartphone or a tablet. Virtual volunteering is al ...
– working on a task on-line, off-site from the organization being assisted, without the requirement or expectation of being paid, using a computer or other Internet-connected device. Wikipedia is developed on-line by contributors using their web browsers. ****
Micro-volunteering Micro-volunteering describes a volunteer, or team of volunteers, completing small tasks that make up a larger project. These tasks often benefit a research, charitable, or non-governmental organization. It differs from normal volunteerism as the t ...
– tasks done by a volunteer, or a team of volunteers, without payment, either online or offline in small increments of time. ** Motivations of Wikipedia contributors – article includes various studies about the motivations of Wikipedia contributors. **
Arbitration Committee On Wikimedia Foundation projects, an Arbitration Committee (ArbCom) is a binding dispute resolution panel of editors. Each of Wikimedia's projects are editorially autonomous and independent, and some of them have established their own ArbComs w ...
(ArbCom) – panel of editors elected by the Wikipedia community that imposes binding rulings with regard to disputes between editors of the online encyclopedia. It acts as the
court of last resort A supreme court is the highest court within the hierarchy of courts in most legal jurisdictions. Other descriptions for such courts include court of last resort, apex court, and high (or final) court of appeal. Broadly speaking, the decisions of ...
for disputes among editors. ** ''
The Signpost ''The Signpost'' (formerly ''The Wikipedia Signpost'') is the Wikimedia movement's online newspaper. Managed by the volunteer community, it is published online with contributions from Wikimedia editors. The newspaper reports on the Wikimedia c ...
'' – on-line community-written and community-edited newspaper, covering stories, events and reports related to Wikipedia and the Wikimedia Foundation sister projects.


Viewing Wikipedia off-line

*
Kiwix Kiwix is a free and open-source offline web browser created by Emmanuel Engelhart and Renaud Gaudin in 2007. It was first launched to allow offline access to Wikipedia, but has since expanded to include other projects from the Wikimedia Foundati ...
– free and open-source offline web browser created by Emmanuel Engelhart and Renaud Gaudin in 2007. It was first launched to allow offline access to Wikipedia, but has since expanded to include other projects from the Wikimedia foundation as well as public domain texts from the
Project Gutenberg Project Gutenberg (PG) is a volunteer effort to digitize and archive cultural works, as well as to "encourage the creation and distribution of eBooks." It was founded in 1971 by American writer Michael S. Hart and is the oldest digital libr ...
. *
XOWA XOWA is a free and open-source application written primarily in Java by anonymous developers and is intended for users who wish to run their own copy of Wikipedia, or any other compatible Wiki, offline without an internet connection. XOWA is com ...
– open-source application written primarily in Java by anonymous developers, intended for users who wish to run their own copy of Wikipedia, or any other compatible Wiki offline without an internet connection. XOWA is compatible with Microsoft Windows, OSX, Linux and Android.


Diffusion of Wikipedia

*
Diffusion Diffusion is the net movement of anything (for example, atoms, ions, molecules, energy) generally from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in Gibbs free energy or chemica ...
– process by which a new idea or new product is accepted by the market. The rate of diffusion is the speed that the new idea spreads from one consumer to the next. In economics it is more often named "technological change". *
Diffusion of innovations Diffusion of innovations is a theory that seeks to explain how, why, and at what rate new ideas and technology spread. Everett Rogers, a professor of communication studies, popularized the theory in his book ''Diffusion of Innovations''; the boo ...
– process by which an innovation is communicated through certain channels over time among the members of a social system. *
List of Wikipedias Wikipedia is a free content, free multilingualism, multilingual open source wiki-based online encyclopedia open collaboration, edited and maintained by a Wikipedia community, community of volunteer editors, started on as an English Wikipedia, E ...
– Wikipedia has spread around the world, being made available to people in their native tongues. As of April 2018, there were 299 Wikipedias.


Websites that use Wikipedia

* Books LLC – publishes print-on-demand paperback and downloadable compilations of English texts and documents from open knowledge sources such as Wikipedia. *
DBpedia DBpedia (from "DB" for " database") is a project aiming to extract structured content from the information created in the Wikipedia project. This structured information is made available on the World Wide Web. DBpedia allows users to semanti ...
– * Koru search engine – *
Wikipediavision Wikipediavision is a site that shows in semi-realtime where anonymous edits to Wikipedia are originating from. It was launched in the fall of 2007 by László Kozma, at that time a student in Finland. The site combines Wikipedia's recent change ...


Websites that mirror Wikipedia

*
Answers.com Answers.com, formerly known as WikiAnswers, is an Internet-based knowledge exchange. The Answers.com domain name was purchased by entrepreneurs Bill Gross and Henrik Jones at idealab in 1996. The domain name was acquired by NetShepard and sub ...
– *
Bing Bing most often refers to: * Bing Crosby (1903–1977), American singer * Microsoft Bing, a web search engine Bing may also refer to: Food and drink * Bing (bread), a Chinese flatbread * Bing (soft drink), a UK brand * Bing cherry, a varie ...
– *
Facebook Facebook is an online social media and social networking service owned by American company Meta Platforms. Founded in 2004 by Mark Zuckerberg with fellow Harvard College students and roommates Eduardo Saverin, Andrew McCollum, Dustin Mosk ...
– *
Reference.com Reference.com is an online encyclopedia that organizes content that uses a question-and-answer format. Articles are organized into hierarchical categories. Before IAC (company), IAC restructured the site following an acquisition in 2008, Refer ...
– * TheFreeDictionary.com – *
Wapedia Wapedia was a mobile version of Wikipedia. It was started in August 2004 by Florian Amrhein and shut down on 4 November 2013. It was operated by Taptu. Wapedia was originally a Wireless Application Protocol (WAP) site for use on mobile phones ...


Wikipedia derived encyclopedias

* Books LLC – *
VDM Publishing Omniscriptum Publishing Group, formerly known as VDM Verlag Dr. Müller, is a German publishing group headquartered in Riga, Latvia. Founded in 2002 in Düsseldorf, its book production is based on print-to-order technology. The company publis ...
– * Veropedia – * WikiPilipinas – * WikiPock – *
WikiReader WikiReader was a project to deliver an offline, text-only version of Wikipedia on a mobile device. The project was sponsored by Openmoko and made by Pandigital, and its source code has been released. The project debuted an offline portable read ...


Parodies of Wikipedia

*
Bigipedia ''Bigipedia'' (stylised as "βIgiPεðiA") is a comedy sketch show broadcast on BBC Radio 4 that first aired between 23 July and 13 August 2009. A second series of four episodes began on 12 July 2011. The show's storyline revolves around "Bigip ...
– a comedy series broadcast by
BBC Radio 4 BBC Radio 4 is a British national radio station owned and operated by the BBC that replaced the BBC Home Service in 1967. It broadcasts a wide variety of spoken-word programmes, including news, drama, comedy, science and history from the BBC' ...
in July 2009, which was set on a website which was a parody of Wikipedia. Some of the sketches were directly inspired by Wikipedia and its articles. *
Encyclopedia Dramatica Encyclopedia Dramatica (ED; also spelled Encyclopædia Dramatica) is a satirical online community centered around a wiki that acts as a "troll archive". The site hosts racist material and shock content; as a result it was filtered from Google ...
– * La Frikipedia – * Stupidedia – * Uncyclopedia – satirical website that parodies Wikipedia. Founded in 2005 as an originally English-language
wiki A wiki ( ) is an online hypertext publication collaboratively edited and managed by its own audience, using a web browser. A typical wiki contains multiple pages for the subjects or scope of the project, and could be either open to the pub ...
, the project currently spans over 75 languages. The English version has over 30,000 pages of content, second only to the Brazilian/Portuguese.


Wikipedia-related media

*
Wikipedia Signpost ''The Signpost'' (formerly ''The Wikipedia Signpost'') is the Wikimedia movement's online newspaper. Managed by the volunteer community, it is published online with contributions from Wikimedia editors. The newspaper reports on the Wikimedia c ...
– on-line community-written and community-edited newspaper, covering stories, events and reports related to Wikipedia and the Wikimedia Foundation sister projects.


Books about Wikipedia

* '' Common Knowledge?: An Ethnography of Wikipedia'' – * ''
The Cult of the Amateur ''The Cult of the Amateur: How Today's Internet Is Killing Our Culture'' is a 2007 book written by entrepreneur and Internet critic Andrew Keen. Published by Currency, Keen's first book is a critique of the enthusiasm surrounding user-generate ...
'' – * '' Good Faith Collaboration'' – * ''
How Wikipedia Works ''How Wikipedia Works'' is a 2008 book by Phoebe Ayers, Charles Matthews, and Ben Yates. Published by No Starch Press, it is a how-to reference book for using and contributing to the Wikipedia encyclopedia, targeted at "students, professors, and ...
'' – * '' La révolution Wikipédia'' – * '' Wikipedia: A New Community of Practice?'' – * '' The Wikipedia Revolution: How a Bunch of Nobodies Created the World's Greatest Encyclopedia'' – * '' Wikipedia – The Missing Manual'' – * '' The World and Wikipedia: How We are Editing Reality'' –


Films about Wikipedia

*
List of films about Wikipedia The following is a list of films about Wikipedia. Films * ''The Truth According to Wikipedia'' (also referred to as ''Wiki's Warhead'' and ''Wiki's Truth'') is a 2008 Dutch documentary film about Wikipedia directed by IJsbrand van Veelen which w ...


Third-party software related to Wikipedia

*
DBpedia DBpedia (from "DB" for " database") is a project aiming to extract structured content from the information created in the Wikipedia project. This structured information is made available on the World Wide Web. DBpedia allows users to semanti ...
(from "DB" for "database") – database built from the structured content of Wikipedia, including infoboxes, etc. It is made available for free on the World Wide Web. DBpedia allows users to semantically query relationships and properties associated with Wikipedia resources, including links to other related datasets. *
Kiwix Kiwix is a free and open-source offline web browser created by Emmanuel Engelhart and Renaud Gaudin in 2007. It was first launched to allow offline access to Wikipedia, but has since expanded to include other projects from the Wikimedia Foundati ...
– free program used to view Wikipedia offline (no Internet connection). This is done by reading the content of the project stored in a file of the ZIM format, which contains the compressed contents of Wikipedia. Kiwix is designed for computers without Internet access, and in particular, computers in schools in the Third World, where Internet service is scant. * WikiTaxonomy – hierarchy of classes and instances (an
ontology In metaphysics, ontology is the philosophical study of being, as well as related concepts such as existence, becoming, and reality. Ontology addresses questions like how entities are grouped into categories and which of these entities exi ...
) automatically generated from Wikipedia's category system * YAGO (Yet Another Great Ontology) – knowledge base developed at the Max Planck Institute for Computer Science in Saarbrücken. It is automatically extracted from Wikipedia and other sources. It includes knowledge about more than 10 million entities and contains more than 120 million facts about these entities.


Mobile apps

*
QRpedia QRpedia is a mobile Web-based system which uses QR codes to deliver Wikipedia articles to users, in their preferred language. A typical use is on museum labels, linking to Wikipedia articles about the exhibited object. QR codes can easily be gene ...
mobile Web The mobile web refers to mobile browser-based World Wide Web services accessed from handheld mobile devices, such as smartphones or feature phones, through a mobile or other wireless network. History and development Traditionally, the World ...
-based system which uses
QR code A QR code (an initialism for quick response code) is a type of matrix barcode (or two-dimensional barcode) invented in 1994 by the Japanese company Denso Wave. A barcode is a machine-readable optical label that can contain information about th ...
s to deliver Wikipedia articles to users, in their preferred language. The QRpedia server uses Wikipedia's API to determine whether there is a version of the specified Wikipedia article in the language used by the device, and if so, returns it in a mobile-friendly format. If there is no version of the article available in the preferred language, then the QRpedia server performs a search for the article title on the relevant language's Wikipedia, and returns the results. * WikiNodes – app for the
Apple iPad An apple is an edible fruit produced by an apple tree (''Malus domestica''). Apple trees are cultivated worldwide and are the most widely grown species in the genus ''Malus''. The tree originated in Central Asia, where its wild ancestor, ...
for browsing Wikipedia using a radial tree approach to visualize how articles and subsections of articles are interrelated. It is a visual array of related items (articles or sections of an article), which spread on the screen, as a spiderweb of icons.


Reliability analysis programs

*
Wiki-Watch Wiki-Watch, formally known as ( en, Wiki-Watch Project at the "Study and Research Centre on Media Law" from the Faculty of Law at Viadrina European University) is a German university project for transparency of Wikipedia and Wikipedia articles, ...
– free page analysis tool that automatically assesses the reliability of Wikipedia articles in English and German. It produces a five-level evaluation score corresponding to its assessment of reliability. *
Wikibu Wikibu.ch is a free software tool to assess the reliability of German Wikipedia articles. It was released by the University of Teacher Education Bern for use in schools to improve information literacy.Nando Stöcklin: Glaubwürdigkeit von Wikiped ...
– assesses the reliability of German Wikipedia articles. It was originally designed for use in schools to improve information literacy. *
WikiTrust WikiTrust is a software product, available as a Firefox Plugin, which aimed to assist editors in detecting vandalism and dubious edits, by highlighting the "untrustworthy" text with a yellow or orange background. As of September 2017, the serv ...
– assesses the credibility of content and author reputation of wiki articles using an automated algorithm. WikiTrust is a plug-in for servers using the MediaWiki platform, such as Wikipedia.


General Wikipedia concepts

* Wikipedia iOS apps – *
Henryk Batuta hoax The Henryk Batuta hoax was a hoax perpetrated on the Polish Wikipedia from November 2004 to February 2006, the main element of which was a biographical article about a nonexistent socialist revolutionary, Henryk Batuta. History The perpetrators o ...
– hoax perpetrated on the Polish Wikipedia in the form of an article about Henryk Batuta (born Izaak Apfelbaum), a fictional socialist revolutionary and Polish Communist. The fake biography said Batuta was born in Odessa in 1898 and participated in the Russian Civil War. The article was created on November 8, 2004, and exposed as a hoax 15 months later when on February 1, 2006, it was listed for deletion. *
Bomis Bomis ( to rhyme with "promise") was a dot-com company best known for supporting the creations of free-content online-encyclopedia projects Nupedia and Wikipedia. It was co-founded in 1996 by Jimmy Wales, Tim Shell, and Michael Davis. ...
– former dot-com company founded in 1996 by Jimmy Wales and Tim Shell. Its primary business was the sale of advertising on the Bomis.com search portal, and to provide support for the free encyclopedia projects Nupedia and Wikipedia. * Conflict of interest editing on Wikipedia – * Crnogorska Enciklopedija – * Deletionpedia – *
Democratization of knowledge The democratization of knowledge is the acquisition and spread of knowledge amongst a wider part of the population, not just privileged elites such as clergy and academics. Libraries, in particular public libraries, and modern digital technolog ...
– *
Enciclopedia Libre Universal en Español (English: Universal Free Encyclopedia in Spanish) is a Spanish-language wiki-based online encyclopedia, released under the Creative Commons Attribution-ShareAlike License 3.0. It uses the MediaWiki software. It started as a fork of the Spa ...
– *
Essjay controversy The Essjay controversy was an incident in which Ryan Jordan, a Wikipedia editor who went by the username "Essjay", falsely presented himself as a university professor of religion from 2005 to 2007, during which time he was elected to top position ...
– *
Gene Wiki The Gene Wiki is a project within Wikipedia that aims to describe the relationships and functions of all human genes. It was established to transfer information from scientific resources to Wikipedia stub articles. The Gene Wiki project also init ...
– * Péter Gervai – * Good Faith Collaboration – *
Internet Watch Foundation and Wikipedia The Internet (or internet) is the global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices. It is a '' network of networks'' that consists of private, pub ...
– *
Interpedia Interpedia was the first-proposed online encyclopedia which would allow anyone to contribute by writing articles and submitting them to the central catalogue of all Interpedia pages. History Interpedia was initiated by Rick Gates, who posted a ...
– an early proposal for a collaborative Internet encyclopedia *
Rick Jelliffe Richard (Rick) Alan Jelliffe (born 1960) is an Australian programmer and standards activist ( ISO, W3C, IETF), particularly associated with web standards, markup languages, internationalization and schema languages. He is the founder and Chief T ...
– *
Kidnapping of David Rohde David Stephenson Rohde, a journalist for ''The New York Times'', and two associates were kidnapped by members of the Taliban in November 2008. Rohde was in Afghanistan doing research for a book. After being held captive for eight months, in June ...
– * Alan Mcilwraith – * National Portrait Gallery and Wikimedia Foundation copyright dispute – *
Network effect In economics, a network effect (also called network externality or demand-side economies of scale) is the phenomenon by which the value or utility a user derives from a good or service depends on the number of users of compatible products. Net ...
– *
Nupedia Nupedia was an English-language, online encyclopedia whose articles were written by volunteer contributors with appropriate subject matter expertise, reviewed by expert editors before publication, and licensed as free content. It was founded by ...
– * Wikipedia:Nupedia and Wikipedia – * Edward Owens (hoax) – *
Simon Pulsifer Simon Edward Pulsifer (born September 11, 1981) is a Canadian contributor to the English-language Wikipedia whose prolific participation made him a "minor media celebrity". English Wikipedia Pulsifer became an active contributor to the English W ...
– *
QRpedia QRpedia is a mobile Web-based system which uses QR codes to deliver Wikipedia articles to users, in their preferred language. A typical use is on museum labels, linking to Wikipedia articles about the exhibited object. QR codes can easily be gene ...
– multilingual, mobile interface to Wikipedia * La révolution Wikipédia – *
WikiScanner WikiScanner (also known as Wikipedia Scanner) was a publicly searchable database that linked anonymous edits on Wikipedia to the organizations where those edits apparently originated. It did this by cross-referencing the edits with data on the ow ...
– * Speakapedia – *
The Truth According to Wikipedia ''The Truth According to Wikipedia'', also referred to as ''Wiki's Truth'' ( nl, Wiki's Waarheid), is a Dutch documentary about Wikipedia directed by IJsbrand van Veelen. It was screened at The Next Web conference in Amsterdam on 4 April 2008 and ...
– * Truth in Numbers? – * Universal Edit Button – * US Congressional staff edits to Wikipedia – *
User-generated content User-generated content (UGC), alternatively known as user-created content (UCC), is any form of content, such as images, videos, text, testimonials, and audio, that has been posted by users on online platforms such as social media, discussion f ...
– * Wolfgang Werlé and Manfred Lauber – *
Wiki A wiki ( ) is an online hypertext publication collaboratively edited and managed by its own audience, using a web browser. A typical wiki contains multiple pages for the subjects or scope of the project, and could be either open to the pub ...
– * Wikidumper.org – *
Wikipedia biography controversy Since the launch of Wikipedia in 2001, several controversies have occurred. Wikipedia's open-editing model, under which anyone can edit most articles, has led to concerns, such as the quality of writing, the amount of vandalism, and the accuracy ...
– * Wikipedia CD Selection – * Wikipedia Review – *
Wikipedia in culture References to Wikipedia in popular culture have been widespread. Many parody Wikipedia's openness, with individuals vandalizing or modifying articles in nonconstructive ways. Others feature individuals using Wikipedia as a reference work, or posi ...


Politics of Wikipedia

* Censorship of Wikipedia – * Church of Scientology editing on Wikipedia – * Corporate Representatives for Ethical Wikipedia Engagement – * Wikipedia for World Heritage – effort underway to get Wikipedia listed as a UNESCO World Heritage Site.


History of Wikipedia

History of Wikipedia Wikipedia began with its first edit on 15 January 2001, two days after the domain was registered by Jimmy Wales and Larry Sanger. Its technological and conceptual underpinnings predate this; the earliest known proposal for an online encyclo ...
– Wikipedia was formally launched on 15 January 2001 by Jimmy Wales and Larry Sanger, using the concept and technology of a wiki pioneered by Ward Cunningham. Initially, Wikipedia was created to complement Nupedia, an online encyclopedia project edited solely by experts, by providing additional draft articles and ideas for it. Wikipedia quickly overtook Nupedia, becoming a global project in multiple languages and inspiring a wide range of additional reference projects. *
Nupedia Nupedia was an English-language, online encyclopedia whose articles were written by volunteer contributors with appropriate subject matter expertise, reviewed by expert editors before publication, and licensed as free content. It was founded by ...
– the predecessor of Wikipedia. Nupedia was an English-language Web-based encyclopedia that lasted from March 2000 until September 2003. Its articles were written by experts and licensed as free content. It was founded by Jimmy Wales and underwritten by Bomis, with Larry Sanger as editor-in-chief. *
Wayback Machine The Wayback Machine is a digital archive of the World Wide Web founded by the Internet Archive, a nonprofit based in San Francisco, California. Created in 1996 and launched to the public in 2001, it allows the user to go "back in time" and see ...
– digital time capsule created by the Internet Archive non-profit organization, based in
San Francisco San Francisco (; Spanish for " Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the fourth most populous in California and 17th ...
,
California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the m ...
. The service enables users to see archived versions of web pages (including Wikipedia) across time, which the Archive calls a "three dimensional index". Internet Archive bought the domain waybackmachine.org for their own site. It is currently in its beta test. *
Wikipedia on the Wayback Machine
* Founders of Wikipedia **
Larry Sanger Lawrence Mark Sanger (; born July 16, 1968) is an American Internet project developer and philosopher who co-founded the online encyclopedia Wikipedia along with Jimmy Wales. Sanger coined the name and wrote much of Wikipedia's original governin ...
– chief organizer (2001–2002) of Wikipedia. He moved on and founded
Citizendium Citizendium ( ; "the citizens' compendium of everything") is an English-language wiki-based free online encyclopedia launched by Larry Sanger, co-founder of Nupedia and Wikipedia. It was first announced in September 2006 as a fork of the Engli ...
. ** Jimmy Wales – historically cited as a co-founder of Wikipedia, though he has disputed the "co-" designation, declaring himself the sole founder. Wales serves on the board of trustees of the Wikimedia Foundation, the non-profit charitable organization he helped establish to operate Wikipedia, holding its board-appointed "community founder seat". * Academic studies about Wikipedia – In recent years there have been numerous academic studies about Wikipedia in peer-reviewed publications. This research can be grouped into two categories. The first analyzed the production and reliability of the encyclopedia content, while the second investigated social aspects, such as usage and administration. Such studies are greatly facilitated by the fact that
Wikipedia Wikipedia is a multilingual free online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and using a wiki-based editing system. Wikipedia is the largest and most-read refer ...
's database can be downloaded without needing to ask the assistance of the site owner. * Flagged Revisions – software extension to the MediaWiki wiki software that allows moderation of edits to Wiki pages. It was developed by the Wikimedia Foundation for use on Wikipedia and similar wikis hosted on its servers. On June 14, 2010, English Wikipedia began a 2-month trial of a similar feature known as
pending changes Flagged Revisions, also known as FlaggedRevs, is a software extension to the MediaWiki software that allows moderation of edits to Wiki pages. It was developed by the Wikimedia Foundation for use on Wikipedia and similar wikis hosted on its serve ...
. In May 2011, this feature was removed indefinitely from all articles, after a discussion among English Wikipedia editors.


Wikipedia-inspired projects

*
Citizendium Citizendium ( ; "the citizens' compendium of everything") is an English-language wiki-based free online encyclopedia launched by Larry Sanger, co-founder of Nupedia and Wikipedia. It was first announced in September 2006 as a fork of the Engli ...
– is a wiki for providing free knowledge where authors use their real, verified names. * Conservapedia – is an English-language wiki encyclopedia project written from an American conservative point of view. * Infogalactic – is intended to have less alleged politically progressive, left-wing, or "politically correct" bias than Wikipedia, and to allow articles or statements that would not be allowed on Wikipedia because of problems with Wikipedia's policies on reliable sources, or due to alleged biases held by Wikipedia editors. * Knol – was a Google project that aimed to include user-written articles on a range of topics. *
Scholarpedia ''Scholarpedia'' is an English-language wiki-based online encyclopedia with features commonly associated with open-access online academic journals, which aims to have quality content in science and medicine. ''Scholarpedia'' articles are written ...
– is an English-language online wiki-based encyclopedia with features commonly associated with open-access online academic journals, which aims to have quality content. * Uncyclopedia – is a satirical website that parodies Wikipedia. Its logo, a hollow "puzzle potato", parodies Wikipedia's globe puzzle logo, and it styles itself "the content-free encyclopedia", which is a parody of Wikipedia's slogan, "the free encyclopedia". The project spans over 75 languages. The English version has approximately 30,000 pages of content, second only to the Portuguese.


Wikipedia in culture

Wikipedia in culture References to Wikipedia in popular culture have been widespread. Many parody Wikipedia's openness, with individuals vandalizing or modifying articles in nonconstructive ways. Others feature individuals using Wikipedia as a reference work, or posi ...
– * Wikiracing – game using the online encyclopedia
Wikipedia Wikipedia is a multilingual free online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and using a wiki-based editing system. Wikipedia is the largest and most-read refer ...
which focuses on traversing links from one page to another. The average number of links separating any two Wikipedia pages is 3.67.


People in relation to Wikipedia

*
Larry Sanger Lawrence Mark Sanger (; born July 16, 1968) is an American Internet project developer and philosopher who co-founded the online encyclopedia Wikipedia along with Jimmy Wales. Sanger coined the name and wrote much of Wikipedia's original governin ...
– chief organizer (2001–2002) of Wikipedia. He moved on and founded
Citizendium Citizendium ( ; "the citizens' compendium of everything") is an English-language wiki-based free online encyclopedia launched by Larry Sanger, co-founder of Nupedia and Wikipedia. It was first announced in September 2006 as a fork of the Engli ...
. * Jimmy Wales – historically cited as a co-founder of Wikipedia, though he has disputed the "co-" designation, declaring himself the sole founder. Wales serves on the board of trustees of the Wikimedia Foundation, the non-profit charitable organization he helped establish to operate Wikipedia, holding its board-appointed "community founder" seat. *
Andrew Lih Andrew Lih (; born 1968)Andrew Lih
"
Wikipedia Wikipedia is a multilingual free online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and using a wiki-based editing system. Wikipedia is the largest and most-read refer ...
contributor, and in 2009 published the book '' The Wikipedia Revolution: How a Bunch of Nobodies Created the World's Greatest Encyclopedia''. Lih has been interviewed in a variety of publications, including ''
Salon.com ''Salon'' is an American politically progressive/ liberal news and opinion website created in 1995. It publishes articles on U.S. politics, culture, and current events. Content and coverage ''Salon'' covers a variety of topics, including re ...
'' and ''
The New York Times ''The New York Times'' (''the Times'', ''NYT'', or the Gray Lady) is a daily newspaper based in New York City with a worldwide readership reported in 2020 to comprise a declining 840,000 paid print subscribers, and a growing 6 million paid d ...
''
Freakonomics ''Freakonomics: A Rogue Economist Explores the Hidden Side of Everything'' is the debut non-fiction book by University of Chicago economist Steven Levitt and ''New York Times'' journalist Stephen J. Dubner. Published on April 12, 2005, by Will ...
blog, as an expert on Wikipedia.


Critics of Wikipedia

* Murat Bardakçı – on Turkish television, he declared that Wikipedia should be banned. * Nicholas G. Carr – in his 2005 blog essay titled "The Amorality of Web 2.0," he criticized the quality of volunteer
Web 2.0 Web 2.0 (also known as participative (or participatory) web and social web) refers to websites that emphasize user-generated content, ease of use, participatory culture and interoperability (i.e., compatibility with other products, systems, and ...
information projects such as
Wikipedia Wikipedia is a multilingual free online encyclopedia written and maintained by a community of volunteers, known as Wikipedians, through open collaboration and using a wiki-based editing system. Wikipedia is the largest and most-read refer ...
and the
blogosphere The blogosphere is made up of all blogs and their interconnections. The term implies that blogs exist together as a connected community (or as a collection of connected communities) or as a social networking service in which everyday authors can pu ...
and argued that they may have a net negative effect on society by displacing more expensive professional alternatives. * Jorge Cauz – president of Encyclopædia Britannica Inc.. In July 2006, in an interview in ''
The New Yorker ''The New Yorker'' is an American weekly magazine featuring journalism, commentary, criticism, essays, fiction, satire, cartoons, and poetry. Founded as a weekly in 1925, the magazine is published 47 times annually, with five of these issues ...
'', he stated that Wikipedia would "decline into a hulking, mediocre mass of uneven, unreliable, and, many times, unreadable articles" and that "Wikipedia is to Britannica as ''
American Idol ''American Idol'' is an American singing competition television series created by Simon Fuller, produced by Fremantle North America and 19 Entertainment, and distributed by Fremantle North America. It aired on Fox from June 11, 2002, to Ap ...
'' is to the
Juilliard School The Juilliard School ( ) is a private performing arts conservatory in New York City. Established in 1905, the school trains about 850 undergraduate and graduate students in dance, drama, and music. It is widely regarded as one of the most elit ...
." * Conservapedia English-language
wiki A wiki ( ) is an online hypertext publication collaboratively edited and managed by its own audience, using a web browser. A typical wiki contains multiple pages for the subjects or scope of the project, and could be either open to the pub ...
project started in 2006 by
homeschool Homeschooling or home schooling, also known as home education or elective home education (EHE), is the education of school-aged children at home or a variety of places other than a school. Usually conducted by a parent, tutor, or an onlin ...
teacher and attorney Andy Schlafly, son of conservative activist
Phyllis Schlafly Phyllis Stewart Schlafly (; born Phyllis McAlpin Stewart; August 15, 1924 – September 5, 2016) was an American attorney, conservative activist, author, and anti-feminist spokesperson for the national conservative movement. She held paleocons ...
, to counter what he called the liberal bias of Wikipedia. * Gay Nigger Association of America – anti-blogging Internet trolling organization. On Wikipedia, members of the group created a page about themselves, while adhering to every rule of Wikipedia in order to use the system against itself. *
Aaron Klein Aaron Klein ( he, אהרון קליין; born 1979) is an American-Israeli conservative political commentator, journalist, strategist, bestselling author, and senior advisor to Prime Minister Benjamin Netanyahu. He served as campaign manager fo ...
– *
Jaron Lanier Jaron Zepel Lanier (, born May 3, 1960) is an American computer scientist, visual artist, computer philosophy writer, technologist, futurist, and composer of contemporary classical music. Considered a founder of the field of virtual reality, La ...
– *
Robert McHenry Robert Dale McHenry (born April 30, 1945) is an American editor, encyclopedist, philanthropist and writer. McHenry worked from 1967 for Encyclopædia Britannica Inc. or associated companies, becoming editor-in-chief of the ''Encyclopædia Brita ...
– *
Patrick Nielsen Hayden Patrick James Nielsen Hayden (born Patrick James Hayden January 2, 1959), is an American science fiction editor, fan, fanzine publisher, essayist, reviewer, anthologist, teacher and blogger. He is a World Fantasy Award and Hugo Award winner ...
– *
Andrew Orlowski Andrew Orlowski (born 1966) is a British columnist, investigative journalist and former executive editor of the IT news and opinion website ''The Register''. In 2021, Orlowski became a business columnist for ''The Daily Telegraph''. Journalism ...
– * Robert L. Park – *
Jason Scott Sadofsky Jason Scott Sadofsky (born September 13, 1970), more commonly known as Jason Scott, is an American archivist, historian of technology, filmmaker, performer, and actor. Scott has been known by the online pseudonyms Sketch, SketchCow, The Slipp ...
– *
Larry Sanger Lawrence Mark Sanger (; born July 16, 1968) is an American Internet project developer and philosopher who co-founded the online encyclopedia Wikipedia along with Jimmy Wales. Sanger coined the name and wrote much of Wikipedia's original governin ...
– * Andrew Schlafly – *
John Seigenthaler John Lawrence Seigenthaler ( ; July 27, 1927 – July 11, 2014) was an American journalist, writer, and political figure. He was known as a prominent defender of First Amendment rights. Seigenthaler joined the Nashville newspaper ''The ...
– *
Lawrence Solomon Lawrence Solomon is a Canadian writer on the environment and the executive director of Energy Probe, a Canadian non-governmental environmental policy organization, and a member of the advisory board of the far-right Rebel News. His writing has ...
– *
Sam Vaknin Shmuel "Sam" Vaknin (born April 21, 1961) is an Israelis, Israeli writer and professor of psychology.Vaknin, Sam"Curriculum Vitae" samvak.tripod.com, accessed October 27, 2021 He is the author of ''Malignant Self Love: Narcissism Revisited'' (199 ...
– * Wikipedia Review – *
Tom Wolfe Thomas Kennerly Wolfe Jr. (March 2, 1930 – May 14, 2018)Some sources say 1931; ''The New York Times'' and Reuters both initially reported 1931 in their obituaries before changing to 1930. See and was an American author and journalist widely ...


Wikipedia Foundations and Organizations

*
Wikimedia Foundation The Wikimedia Foundation, Inc., or Wikimedia for short and abbreviated as WMF, is an American 501(c)(3) nonprofit organization headquartered in San Francisco, California and registered as a charitable foundation under local laws. Best know ...
– the non profit based in San Francisco, California, USA which was established to own and manage the trademarks and the servers for Wikipedia and its sister projects.


Wikipedia-related projects


Wikipedia's sister projects

Wikimedia projects The Wikimedia Foundation, Inc., or Wikimedia for short and abbreviated as WMF, is an American 501(c)(3) nonprofit organization headquartered in San Francisco, California and registered as a charitable foundation under local laws. Best kno ...
*
Commons The commons is the cultural and natural resources accessible to all members of a society, including natural materials such as air, water, and a habitable Earth. These resources are held in common even when owned privately or publicly. Commons c ...
– online repository of free-use images, sound and other media files, hosted by the Wikimedia Foundation. * MediaWiki website – home of
MediaWiki MediaWiki is a free and open-source wiki software. It is used on Wikipedia and almost all other Wikimedia websites, including Wiktionary, Wikimedia Commons and Wikidata; these sites define a large part of the requirement set for MediaWi ...
(the software that runs Wikipedia), and where it gets developed. *
Meta-Wiki The Wikimedia Foundation, Inc., or Wikimedia for short and abbreviated as WMF, is an American 501(c)(3) nonprofit organization headquartered in San Francisco, California and registered as a charitable foundation under local laws. Best know ...
– central site to coordinate all Wikimedia projects. *
Wikibooks Wikibooks (previously called ''Wikimedia Free Textbook Project'' and ''Wikimedia-Textbooks'') is a wiki-based Wikimedia project hosted by the Wikimedia Foundation for the creation of free content digital textbooks and annotated texts that an ...
– Wiki hosted by the Wikimedia Foundation for the creation of free content textbooks and annotated texts that anyone can edit. *
Wikidata Wikidata is a collaboratively edited multilingual knowledge graph hosted by the Wikimedia Foundation. It is a common source of open data that Wikimedia projects such as Wikipedia, and anyone else, can use under the CC0 public domain license ...
– free and open knowledge base that can be read and edited by both humans and machines. *
Wikinews Wikinews is a free-content news wiki and a project of the Wikimedia Foundation that works through collaborative journalism. Wikipedia cofounder Jimmy Wales has distinguished Wikinews from Wikipedia by saying, "On Wikinews, each story is to be ...
– free-content news source wiki and a project of the Wikimedia Foundation that works through collaborative journalism. *
Wikiquote Wikiquote is part of a family of wiki-based projects run by the Wikimedia Foundation using MediaWiki software. Based on an idea by Daniel Alston and implemented by Brion Vibber, the project's objective is to produce collaboratively a vast refer ...
– freely available collection of quotations from prominent people, books, films and proverbs, with appropriate attributions. *
Wikisource Wikisource is an online digital library of free-content textual sources on a wiki, operated by the Wikimedia Foundation. Wikisource is the name of the project as a whole and the name for each instance of that project (each instance usually re ...
– online digital library of free content textual sources on a wiki, operated by the Wikimedia Foundation. *
Wikispecies Wikispecies is a wiki-based online project supported by the Wikimedia Foundation. Its aim is to create a comprehensive open content catalogue of all species; the project is directed at scientists, rather than at the general public. Jimmy Wa ...
– wiki-based online project supported by the Wikimedia Foundation. Its aim is to create a comprehensive free content catalogue of all species and is directed at scientists, rather than at the general public. *
Wikiversity Wikiversity is a Wikimedia Foundation project that supports learning communities, their learning materials, and resulting activities. It differs from Wikipedia in that it offers tutorials and other materials for the fostering of learning, rather ...
– Wikimedia Foundation project which supports learning communities, their learning materials, and resulting activities. *
Wikivoyage Wikivoyage is a free web-based travel guide for travel destinations and travel topics written by volunteer authors. It is a sister project of Wikipedia and supported and hosted by the same non-profit Wikimedia Foundation (WMF). Wikivoyage has ...
– free web-based travel guide for travel destinations and travel topics written by volunteer authors. *
Wiktionary Wiktionary ( , , rhyming with "dictionary") is a multilingual, web-based project to create a free content dictionary of terms (including words, phrases, proverbs, linguistic reconstructions, etc.) in all natural languages and in a numbe ...
– multilingual, web-based project to create a free content dictionary, available in 158 languages, run by the Wikimedia Foundation.


Wikipedias by language

*
Afrikaans Afrikaans (, ) is a West Germanic language that evolved in the Dutch Cape Colony from the Dutch vernacular of Holland proper (i.e., the Hollandic dialect) used by Dutch, French, and German settlers and their enslaved people. Afrikaans gra ...
( af) * Albanian ( sq) * Alemannic ( als) *
Arabic Arabic (, ' ; , ' or ) is a Semitic language spoken primarily across the Arab world.Semitic languages: an international handbook / edited by Stefan Weninger; in collaboration with Geoffrey Khan, Michael P. Streck, Janet C. E.Watson; Walter ...
( ar) * Aragonese ( an) *
Armenian Armenian may refer to: * Something of, from, or related to Armenia, a country in the South Caucasus region of Eurasia * Armenians, the national people of Armenia, or people of Armenian descent ** Armenian Diaspora, Armenian communities across the ...
( hy) *
Azeri Azerbaijanis (; az, Azərbaycanlılar, ), Azeris ( az, Azərilər, ), or Azerbaijani Turks ( az, Azərbaycan Türkləri, ) are a Turkic people living mainly in northwestern Iran and the Republic of Azerbaijan. They are the second-most numer ...
( az) * Bambara ( bm) *
Basque Basque may refer to: * Basques, an ethnic group of Spain and France * Basque language, their language Places * Basque Country (greater region), the homeland of the Basque people with parts in both Spain and France * Basque Country (autonomous co ...
( eu) * Belarusian ( be-x-old) * Belarusian ( be) *
Bengali Bengali or Bengalee, or Bengalese may refer to: *something of, from, or related to Bengal, a large region in South Asia * Bengalis, an ethnic and linguistic group of the region * Bengali language, the language they speak ** Bengali alphabet, the w ...
( bn) * Bosnian ( bs) * Bulgarian ( bg) *
Cantonese Cantonese ( zh, t=廣東話, s=广东话, first=t, cy=Gwóngdūng wá) is a language within the Chinese (Sinitic) branch of the Sino-Tibetan languages originating from the city of Guangzhou (historically known as Canton) and its surrounding ar ...
( zh-yue) *
Catalan Catalan may refer to: Catalonia From, or related to Catalonia: * Catalan language, a Romance language * Catalans, an ethnic group formed by the people from, or with origins in, Northern or southern Catalonia Places * 13178 Catalan, asteroid #1 ...
( ca) * Cebuano ( ceb) * Chechen ( ce) *
Chinese Chinese can refer to: * Something related to China * Chinese people, people of Chinese nationality, citizenship, and/or ethnicity **''Zhonghua minzu'', the supra-ethnic concept of the Chinese nation ** List of ethnic groups in China, people of ...
( zh) * Chuvash ( cv) * Croatian ( hr) *
Czech Czech may refer to: * Anything from or related to the Czech Republic, a country in Europe ** Czech language ** Czechs, the people of the area ** Czech culture ** Czech cuisine * One of three mythical brothers, Lech, Czech, and Rus' Places * Czech, ...
( cs) *
Danish Danish may refer to: * Something of, from, or related to the country of Denmark People * A national or citizen of Denmark, also called a "Dane," see Demographics of Denmark * Culture of Denmark * Danish people or Danes, people with a Danish a ...
( da) *
Dutch Low Saxon Dutch Low Saxon ( or ''Nederlaands Nedersaksies''; nl, Nederlands Nedersaksisch) are the Low Saxon dialects of the Low German language that are spoken in the northeastern Netherlands and are written there with local, unstandardised orthographie ...
( nds-nl) *
Dutch Dutch commonly refers to: * Something of, from, or related to the Netherlands * Dutch people () * Dutch language () Dutch may also refer to: Places * Dutch, West Virginia, a community in the United States * Pennsylvania Dutch Country People E ...
( nl) *
Egyptian Arabic Egyptian Arabic, locally known as Colloquial Egyptian ( ar, العامية المصرية, ), or simply Masri (also Masry) (), is the most widely spoken vernacular Arabic dialect in Egypt. It is part of the Afro-Asiatic language family, and ...
( arz) *
English English usually refers to: * English language * English people English may also refer to: Peoples, culture, and language * ''English'', an adjective for something of, from, or related to England ** English national ide ...
( en) * Esperanto ( eo) * Estonian ( et) *
Finnish Finnish may refer to: * Something or someone from, or related to Finland * Culture of Finland * Finnish people or Finns, the primary ethnic group in Finland * Finnish language, the national language of the Finnish people * Finnish cuisine See also ...
( fi) * French ( fr) * Galician ( gl) *
Georgian Georgian may refer to: Common meanings * Anything related to, or originating from Georgia (country) ** Georgians, an indigenous Caucasian ethnic group ** Georgian language, a Kartvelian language spoken by Georgians **Georgian scripts, three scrip ...
( ka) *
German German(s) may refer to: * Germany (of or related to) ** Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ge ...
( de) *
Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...
( el) * Haitian Creole ( ht) *
Hebrew Hebrew (; ; ) is a Northwest Semitic language of the Afroasiatic language family. Historically, it is one of the spoken languages of the Israelites and their longest-surviving descendants, the Jews and Samaritans. It was largely preserved ...
( he) *
Hindi Hindi ( Devanāgarī: or , ), or more precisely Modern Standard Hindi (Devanagari: ), is an Indo-Aryan language spoken chiefly in the Hindi Belt region encompassing parts of northern, central, eastern, and western India. Hindi has been ...
( hi) * Hungarian ( hu) * Indonesian ( id) *
Irish Irish may refer to: Common meanings * Someone or something of, from, or related to: ** Ireland, an island situated off the north-western coast of continental Europe ***Éire, Irish language name for the isle ** Northern Ireland, a constituent unit ...
( ga) *
Italian Italian(s) may refer to: * Anything of, from, or related to the people of Italy over the centuries ** Italians, an ethnic group or simply a citizen of the Italian Republic or Italian Kingdom ** Italian language, a Romance language *** Regional Ita ...
( it) *
Japanese Japanese may refer to: * Something from or related to Japan, an island country in East Asia * Japanese language, spoken mainly in Japan * Japanese people, the ethnic group that identifies with Japan through ancestry or culture ** Japanese diaspor ...
( ja) * Javanese ( jv) *
Kannada Kannada (; ಕನ್ನಡ, ), originally romanised Canarese, is a Dravidian language spoken predominantly by the people of Karnataka in southwestern India, with minorities in all neighbouring states. It has around 47 million native s ...
( kn) * Kazakh ( kk) *
Korean Korean may refer to: People and culture * Koreans, ethnic group originating in the Korean Peninsula * Korean cuisine * Korean culture * Korean language **Korean alphabet, known as Hangul or Chosŏn'gŭl **Korean dialects and the Jeju language ** ...
( ko) *
Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...
( la) * Latvian ( lv) * Lithuanian ( lt) * Macedonian ( mk) *
Malayalam Malayalam (; , ) is a Dravidian languages, Dravidian language spoken in the Indian state of Kerala and the union territories of Lakshadweep and Puducherry (union territory), Puducherry (Mahé district) by the Malayali people. It is one of 2 ...
( ml) * Malay ( ms) *
Marathi Marathi may refer to: *Marathi people, an Indo-Aryan ethnolinguistic group of Maharashtra, India *Marathi language, the Indo-Aryan language spoken by the Marathi people *Palaiosouda, also known as Marathi, a small island in Greece See also * * ...
( mr) *
Minangkabau Minangkabau may refer to: * Minangkabau culture, culture of the Minangkabau people * Minangkabau Culture Documentation and Information Center * Minangkabau Express, an airport rail link service serving Minangkabau International Airport (''see belo ...
(
min Min or MIN may refer to: Places * Fujian, also called Mǐn, a province of China ** Min Kingdom (909–945), a state in Fujian * Min County, a county of Dingxi, Gansu province, China * Min River (Fujian) * Min River (Sichuan) * Mineola (Am ...
) *
Min Nan Southern Min (), Minnan ( Mandarin pronunciation: ) or Banlam (), is a group of linguistically similar and historically related Sinitic languages that form a branch of Min Chinese spoken in Fujian (especially the Minnan region), most of Taiwan ...
( zh-min-nan) * Mongolian ( mn) * Neapolitan ( nap) *
Nepal Bhasa Newar (), or Newari and known officially in Nepal as Nepal Bhasa, is a Sino-Tibetan language spoken by the Newar people, the indigenous inhabitants of Nepal Mandala, which consists of the Kathmandu Valley and surrounding regions in Nepa ...
(
new New is an adjective referring to something recently made, discovered, or created. New or NEW may refer to: Music * New, singer of K-pop group The Boyz Albums and EPs * ''New'' (album), by Paul McCartney, 2013 * ''New'' (EP), by Regurgitator ...
) * Nepalese ( ne) *
Northern Sami Northern may refer to the following: Geography * North, a point in direction * Northern Europe, the northern part or region of Europe * Northern Highland, a region of Wisconsin, United States * Northern Province, Sri Lanka * Northern Range, a ...
( se) *
Norwegian Norwegian, Norwayan, or Norsk may refer to: *Something of, from, or related to Norway, a country in northwestern Europe * Norwegians, both a nation and an ethnic group native to Norway * Demographics of Norway *The Norwegian language, including ...
(
Bokmål Bokmål () (, ; ) is an official written standard for the Norwegian language, alongside Nynorsk. Bokmål is the preferred written standard of Norwegian for 85% to 90% of the population in Norway. Unlike, for instance, the Italian language, there ...
) ( no) *
Norwegian Norwegian, Norwayan, or Norsk may refer to: *Something of, from, or related to Norway, a country in northwestern Europe * Norwegians, both a nation and an ethnic group native to Norway * Demographics of Norway *The Norwegian language, including ...
(
Nynorsk Nynorsk () () is one of the two written standards of the Norwegian language, the other being Bokmål. From 12 May 1885, it became the state-sanctioned version of Ivar Aasen's standard Norwegian language ( no, Landsmål) parallel to the Dano-N ...
) ( nn) *
Occitan Occitan may refer to: * Something of, from, or related to the Occitania territory in parts of France, Italy, Monaco and Spain. * Something of, from, or related to the Occitania administrative region of France. * Occitan language, spoken in parts o ...
( oc) * Oriya ( or) * Punjabi (Eastern) ( pa) *
Persian Persian may refer to: * People and things from Iran, historically called ''Persia'' in the English language ** Persians, the majority ethnic group in Iran, not to be conflated with the Iranic peoples ** Persian language, an Iranian language of the ...
( fa) *
Polish Polish may refer to: * Anything from or related to Poland, a country in Europe * Polish language * Poles Poles,, ; singular masculine: ''Polak'', singular feminine: ''Polka'' or Polish people, are a West Slavic nation and ethnic group, w ...
( pl) *
Portuguese Portuguese may refer to: * anything of, from, or related to the country and nation of Portugal ** Portuguese cuisine, traditional foods ** Portuguese language, a Romance language *** Portuguese dialects, variants of the Portuguese language ** Portu ...
( pt) * Ripuarian ( ksh) *
Romanian Romanian may refer to: *anything of, from, or related to the country and nation of Romania **Romanians, an ethnic group **Romanian language, a Romance language *** Romanian dialects, variants of the Romanian language ** Romanian cuisine, tradition ...
( ro) *
Russian Russian(s) refers to anything related to Russia, including: *Russians (, ''russkiye''), an ethnic group of the East Slavic peoples, primarily living in Russia and neighboring countries *Rossiyane (), Russian language term for all citizens and peo ...
( ru) *
Sanskrit Sanskrit (; attributively , ; nominally , , ) is a classical language belonging to the Indo-Aryan branch of the Indo-European languages. It arose in South Asia after its predecessor languages had diffused there from the northwest in the late ...
( sa) * Scots ( sco) * Serbian ( sr) *
Serbo-Croatian Serbo-Croatian () – also called Serbo-Croat (), Serbo-Croat-Bosnian (SCB), Bosnian-Croatian-Serbian (BCS), and Bosnian-Croatian-Montenegrin-Serbian (BCMS) – is a South Slavic language and the primary language of Serbia, Croatia, Bosnia an ...
( sh) * Silesian ( szl) * Simple English (
simple Simple or SIMPLE may refer to: *Simplicity, the state or quality of being simple Arts and entertainment * ''Simple'' (album), by Andy Yorke, 2008, and its title track * "Simple" (Florida Georgia Line song), 2018 * "Simple", a song by Johnn ...
) * Slovak ( sk) * Slovene ( sl) *
Spanish Spanish might refer to: * Items from or related to Spain: **Spaniards are a nation and ethnic group indigenous to Spain **Spanish language, spoken in Spain and many Latin American countries **Spanish cuisine Other places * Spanish, Ontario, Can ...
( es) * Swahili ( sw) *
Swedish Swedish or ' may refer to: Anything from or related to Sweden, a country in Northern Europe. Or, specifically: * Swedish language, a North Germanic language spoken primarily in Sweden and Finland ** Swedish alphabet, the official alphabet used by ...
( sv) * Tagalog ( tl) *
Tamil Tamil may refer to: * Tamils, an ethnic group native to India and some other parts of Asia **Sri Lankan Tamils, Tamil people native to Sri Lanka also called ilankai tamils **Tamil Malaysians, Tamil people native to Malaysia * Tamil language, nativ ...
( ta) * Telugu ( te) * Thai ( th) * Turkish ( tr) *
Ukrainian Ukrainian may refer to: * Something of, from, or related to Ukraine * Something relating to Ukrainians, an East Slavic people from Eastern Europe * Something relating to demographics of Ukraine in terms of demography and population of Ukraine * So ...
( uk) *
Urdu Urdu (;"Urdu"
'' ur) * Uzbek ( uz) *
Vietnamese Vietnamese may refer to: * Something of, from, or related to Vietnam, a country in Southeast Asia ** A citizen of Vietnam. See Demographics of Vietnam. * Vietnamese people, or Kinh people, a Southeast Asian ethnic group native to Vietnam ** Overse ...
( vi) *
Võro Võro may refer to: * Võro people, an ethnic group of Estonia * Võro language Võro ( vro, võro kiilʼ, link=no , et, võru keel) is a language belonging to the Finnic branch of the Uralic languages. Traditionally, it has been con ...
( fiu-vro) * Waray-Waray (
war War is an intense armed conflict between states, governments, societies, or paramilitary groups such as mercenaries, insurgents, and militias. It is generally characterized by extreme violence, destruction, and mortality, using regular o ...
) * Welsh ( cy) * Wikipedia:Volapük Wikipedia, Volapük (:vo:, vo) * Wolof Wikipedia, Wolof (:wo:, wo) * Yiddish Wikipedia, Yiddish (:yi:, yi) * Zulu Wikipedia, Zulu (:zu:, zu) : List of Wikipedias, More...


See also

* Wikipedia:Contents – network of outlines of Wikipedia's content * Outline of knowledge – outline about knowledge, and of the body of all human knowledge * ''
The Signpost ''The Signpost'' (formerly ''The Wikipedia Signpost'') is the Wikimedia movement's online newspaper. Managed by the volunteer community, it is published online with contributions from Wikimedia editors. The newspaper reports on the Wikimedia c ...
'' – on-line community-written and community-edited newspaper, covering stories, events and reports related to Wikipedia and the Wikimedia Foundation sister projects. * Wikipedia:Help * List of wikis * List of online encyclopedias * Wikipedia:Semapedia –


References


External links


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