This is a great site for temporary email addresses for students -- perfect for signing your students up with a web 2.0 service that requires an email address.

I like the idea of a shared group. Should we consider some tagging standards to help with organization? Already there are a LOT of tags and I've been finding that too many tags make important links get buried quickly. Should groups be more topic specific? I guess we're all trying to get comfortable with diigo.