I just found an interesting article slideshow via Slashdot, on how real-life social graphs work, and why current social media websites don’t do a good job of supporting them – http://www.slideshare.net/padday/the-real-life-social-network-v2.

The gist is that people’s “real life” social networks are highly faceted in nature, and the resulting online interactions can be jarring. There’s some food for thought here.