Wikis in the Classroom

Mills Kelly has a nice post about PBwiki's new Educators' Wiki, its tips for student wiki etiquette, and his thoughts about using wikis in the classroom.  Along with Wetpaint, Wikidot, and Zoho Wiki, PBwiki is one of several free web services that allow users to very quickly and easily set up custom wikis on any topic. I have always preferred Wetpaint (which my colleague Ken Thompson has used to some success in our own linked History 100: History of Western Civilization/English 201: Reading and Writing about Texts course on science and society), but PBwiki recently announced the imminent release of PBwiki 2.0, which should put it ahead of the pack.