http://www.readwriteweb.com/archives/visualizing_lastfms_friends_network.php#more
Interesting visualization and interesting to see interconnectivity of clusters. When I have a lot of time someday I would like to better understand how this data was derived (last.fm has a public API that makes their user data available? Huh? Whatever happened to privacy - so old school ? Surely just some anonymous aggregate, no?), the data analysis tool used and what it all means, and how it could be used to look at further questions around friend networks ...
