Are there any usability studies around facebook like social user interfaces? Please share.
closed as not constructive by JonW♦ May 21 '12 at 18:20
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Here's a great article on usability principles for social media. It includes a number of examples from web 2.0 driven sites, and discusses their strengths and weaknesses.
Sorry if that is not exactly what you are looking for; the question is a bit vague.
Maybe this helps: Designing Social Interfaces by Christian Crumlish and Erin Malone. I haven't read it, though. Looks like there are lot's of social media patterns published on the website and some discussions around it. But maybe you are interested in Facebook-only stuff.