Wiki - Reviews
A review of the wiki farm Wikidot including what's to like and what's not to like.
A review of the wiki farm site Wikia, formerly known as Wikicities, including pros and cons of the popular wiki site started by one of the founding fathers of Wikipedia, Jimmy Wales.
A review of wikiHow, a wiki website featuring how-to articles on a variety of subjects. The review explains how wikiHow might not be the best place to find out how to do something, but it could be a good wiki community to join.