The Citizendium (sit-ih-ZEN-dee-um), a "citizens' compendium of everything," will be an experimental new wiki project that combines public participation with gentle expert guidance. It will begin life as a "progressive fork" of Wikipedia. But we expect
A folksonomy is a user generated taxonomy used to categorize and retrieve Web pages, photographs, Web links and other web content using open ended labels called tags. Typically, folksonomies are Internet-based, but their use may occur in other contexts as
U. Brandes, P. Kenis, J. Lerner, and D. van Raaij. WWW '09: Proceedings of the 18th international conference on World wide web, page 731--740. New York, NY, USA, ACM, (2009)