If you have been confused about the exact utility and function of wikis, take a look at this very fun and accessible video clip by CommonCraft.
I have be a what you might call a "power-user" of the project management sofeware Basecamp for several years now. And, of Blogger. Oh, and TypePad (which powers this site).
Plus I've sunk oodles of time and ca$h into designing the Web2.0 app for graphic facilitators, MissingLink. All of the aforementioned tools are essentially mutant forms of a wiki--as is the ever popular source of all knowledge, Wikipedia. Each one of these browser-based tools allows multiple users (aka. people) to create, edit and participate in on-line communities.
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