For those in the dark about what social networking is, Common Craft has a video simple explanation of what it is.
Danah Boyd has interesting preliminary research showing how technology mirrors class society with Facebook attracting a more educated and affluent user base than MySpace. [Her talk is available here.] The class segregation is somewhat understandable given the homophily of our friendships. But at the same time, her preliminary conclusions are disappointing since one would hope that online social networks (but virtue of them being