Google Reader adds a social network
Reader's friend list comes from the list of people you can chat with on Google Talk or Gmail chat. To invite friends to see your Reader shared items, simply invite them to chat. To remove them, delete them from your Gmail contacts, or from your Talk list.
The academic blogosphere as a kind of Invisible College - this site is supposed to help make the College a little more visible to itself and its readers.
Really Simple People
Really Simple People format (RSP) puts the portable social graph within reach. Now.
Discovering versus teaching principles of social information management
Nobody understands what del.icio.us does.
Linear and non-linear learning
In nature, linear learning doesn’t exist.