Looking for a few good higher ed blogs, wikis, or second life instances

I'm working on writing a Research Bulletin on Social Software for the Educause Center for Applied Research. I'd like to point to some good uses of social software (blogs, wikis, Second Life, del.icio.us, whatever) in higher ed institutions - whether it's for supporting courses, research efforts, administrative work, or anything else. If you've got some shining examples, please send 'em along.

As part of this effort, when I discover new blogs here at the University of Washington I've started posting them to del.icio.us with the tag uwblogs (with apologies to our colleagues at the Universities of Wisconsin and Waterloo).

Technorati Tags: higher-ed, social-software, UW