http://c2.com/cgi/wiki?TopTenWikiEngines
http://www.wikimatrix.org
http://moinmoin.wikiwikiweb.de/WikiEngineComparison
http://wikifeatures.wiki.taoriver.net/moin.cgi/WikiEngine
http://c2.com/cgi/wiki?WikiEngines, http://c2.com/cgi/wiki?WikiChoicetree
http://en.wikipedia.org/wiki/Comparison_of_wiki_software