The Queen of Wikis
Meredith Farkas is known to some people as the Queen of Wikis. She's probably most famous for creating Library Success: A Best Practices Wiki, and the event wikis for the ALA Chicago 2005, ALA New Orleans 2006, and the Internet Librarian conference 2007.
I attended an online seminar that Meredith taught through Sirsi Dynix and I was most impressed with her practical uses of the tool. She says she isn't "wiki crazy" its just that she happens to have found a lot of good uses for them in her life. Her theory seems to be that they're useful, available for free, easy to create, and practical, so why not use them?