Have you thought about how wikis can be used to enhance learning? Stewart Mader has staked his career on the power of wikis. Mader first worked on wiki adoption in the IT department at Brown University and now is with his own company as a consultant. He says that in higher ed, there are really three ways he thinks a wiki can be useful: teaching, research, and administration.
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Check out the University of Minnesota's supported wiki tool, UMWiki, at http://wiki.umn.edu