Susan Tsairi started a Classroom 2.0 group in Diigo some months ago, and I'm wanting to give it some promotion here! If you are using Diigo (www.diigo.com
) for social bookmarking, and you join the Classroom 2.0 group (http://groups.diigo.com/groups/classroom20
), you can "send" bookmarks that related to Web 2.0/collaboration in education to the group.
From my standpoint, this would be a great way to be clued into new sites, and I can use the group for the now-weekly Classroom 2.0 "Web 2.0 in Education" show on Saturday mornings (see http://www.classroom20wiki.com/LIVE+Conversations
By the way, you can also "tweet" your bookmarks directly from Diigo. Pretty cool, too.