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Everything2 - http://www.everything2.com/
An extensively hyperlinked collection of facts, ideas, notes and humor to which anyone can add. |
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Open Site - http://open-site.org/
A volunteer-run open content encyclopedia. |
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PlanetMath - http://planetmath.org/
Collaborative, peer-reviewed mathematics encyclopedia with TeX input, inspired by MathWorld (GNU Free Documentation License). |
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Wikipedia Article - Nupedia - http://en.wikipedia.org/wiki/Nupedia
Nupedia was a public peer-reviewed general encyclopedia created by volunteer scholars, with resources for readers and contributors (GNU Free Documentation License). It can be considered to be Wikipedia's direct ancestor. |
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dKosopedia - http://www.dkosopedia.com/
A collaborative project of the DailyKos community to build a political encyclopedia. |
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SourceWatch - http://www.sourcewatch.org/
A directory of people, organizations and issues shaping the public agenda. It catalogs PR firms, activist groups and government agencies as well as the criticisms that are made of these groups from different perspectives. |
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Citizendium - http://en.citizendium.org
Wiki with stricter editing rules and obligatory disclosure of editor's real names. |
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Connected: An Internet Encyclopedia - http://www.freesoft.org/CIE/
The engineering, theoretical concepts, and organizations of the Internet (freely distributable). |
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Memory Alpha - http://memory-alpha.org
A peer edited Star Trek encyclopedia. |
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Technomanifestos Network - http://www.technomanifestos.net
Collaborative resource on the history of computing and the Internet (GNU Free Documentation License), and the online companion to the book Technomanifestos. |