Social networks

This is a slide show about social networks, geared toward web designers. I find the format (clicking through 216 slides) rather annoying and some of the content is kind of annoying too (gosh, she's using crutches and wearing high heels!), but there's a lot of interesting information and theory about how people interact, especially online.

http://www.slideshare.net/padday/the-real-life-social-network-v2