Normally I post silly XKCD stuff in the off topic bin but today I am pleased to post something as silly as always but on topic for Randall of XKCD has done another great map of the internet. This time its social networks.
http://xkcd.com/802/
if you click on the map it does a large version which is worth the look. Personally, I like Usenet and Clueless politician coast. Former site of craiglist adult services is a giggle too.
I just wish he would add a few more servers to his site cos I can usually only get it early in the morning. As such I am mirroring it for a while here.