Pharyngula Wiki is another Freethought wiki that Wikia hosts. Pharyngula Wiki deals with Atheism generally, the article Gnu atheism|Gnu atheism is hilarious and well worth reading. Mainly Pharyngula Wiki deals with PZ Myers and matters related to the Pharyngula website.
If you spend time on the either or both of the Pharyngula websites below Pharyngula Wiki is worth a visit.
There are also articles of general interest.