Open Directory License
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The Open Directory License (ODL) is a
public copyright license A public license or public copyright licenses is a license by which a copyright holder as licensor can grant additional copyright permissions to any and all persons in the general public as licensees. By applying a public license to a work, pro ...
that was used by DMOZ for its content. Unlike
open source license An open-source license is a type of license for computer software and other products that allows the source code, blueprint or design to be used, modified and/or shared under defined terms and conditions. This allows end users and commercial compan ...
s, the Open Directory License expressly forbids its applicability to
software Software is a set of computer programs and associated documentation and data. This is in contrast to hardware, from which the system is built and which actually performs the work. At the lowest programming level, executable code consists ...
or open content hosted elsewhere.
Time Warner Warner Media, LLC ( traded as WarnerMedia) was an American multinational mass media and entertainment conglomerate. It was headquartered at the 30 Hudson Yards complex in New York City, United States. It was originally established in 1972 by ...
(via the Netscape Communications Corporation) owns the compilation copyright to its unique selection of website listings (links, titles and descriptions) in the open directory on dmoz.org. As a practical matter, this includes the layouts, and the categories, and does not extend to the content Dmoz links to, or the actual links themselves. The
Free Software Foundation The Free Software Foundation (FSF) is a 501(c)#501(c)(3), 501(c)(3) non-profit organization founded by Richard Stallman on October 4, 1985, to support the free software movement, with the organization's preference for software being distributed ...
describes the ODL as a non-free license, citing the right to redistribute a given version not being permanent, and the requirement to check for changes to the license.


External links


The Open Directory License
Public copyright licenses
License A license (or licence) is an official permission or permit to do, use, or own something (as well as the document of that permission or permit). A license is granted by a party (licensor) to another party (licensee) as an element of an agreeme ...
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