A good overview of the current Web 2.0 trends in higher education by Peter Bihr from a workshop at UOC, Barcelona. Link via Dean Giustini's blog.
My own presentation on Web 2.0 use in medicine (last given in 2007) looks totally outdated in today's fast moving world. For example, Twitter was not even mentioned at the time but now I use it daily.
References:
A Doctor's Opinion: Why I Started Microblogging on Twitter
Social media in medical education - Grand Rounds presentation by IUH Med/Peds residency program director http://goo.gl/Zw3lK