An interesting paper about social networks

The guy who created [tag]Live Journal[/tag] (Brad Fitzpatrick) has a manifesto of sorts regarding what needs to happen next in the world of [tag]social networking[/tag]. He is certainly not the first to identify the problem:

"If I had to declare the problem statement succinctly, it'd be: People are getting sick of registering and re-declaring their friends on every site., but also: Developing "Social Applications" is too much work." (from Brad's Thoughts on the Social Graph)