Topic summary
Online journal

Extracted from the Wikipedia article Academic journal.
Electronic journals
An e-journal closely resembles a print journal in structure: there is a table of contents which lists the articles, and many electronic journals still use a volume/issue model, although some titles now publish continuously. Online journal articles are a specialized form of electronic document: they have the purpose of providing material for academic research and study, and they are formatted approximately like journal articles in traditional printed journals. Often, a journal article will be available for download in two formats: PDF and HTML, although other electronic file types are often supported for supplementary material. New tools such as JATS and Utopia Documents provide a 'bridge' to the 'web-versions' in that they connect the content in PDF versions directly to the World Wide Web via hyperlinks that are created 'on-the-fly'. The PDF version of an article is usually seen as the version of record, but the matter is subject to some debate. Articles are indexed in bibliographic databases as well as by search engines. E-journals allow new types of content to be included in journals, for example, video material, or the data sets on which research has been based.