Open Source Open Content Encyclopedias

• Idea Banks
• Licenses
• Wikipedia

• Citizendium  - Collegial encyclopedia project set up to enhance accountability in the free encyclopedia field.
• Conservapedia  - Written by and for those with conservative views and for home schoolers. Founded in November of 2006.
• Cunnan  - Encyclopedic compilation of information for re-enactors of the Middle Ages and Renaissance.
• dKosopedia  - Political encyclopedia written from a leftist, progressive, liberal, and Democratic point of view.
• Everything2.com  - Online collection of information, ideas, notes and humor that also accommodates user inputs or submissions.
• Memory Alpha  - Peer-edited encyclopedia dedicated to Star Trek topics and interests.
• Musipedia  - Searchable collection of tunes and musical themes that can be openly edited.
• Open-Site  - Volunteer-run and open content encyclopedia for free access.
• PlanetMath  - Online encyclopedia and community of mathematical knowledge. Provides collaboratively-created content.