WorldCat.org has a new feature: search for an author, go to a detailed record of a book by that author, go down to the "Details" part of the record, and click the "Go" button beside "Find More information about..." the author's name. The resulting "Identities" record is a cool social network representation of the author. I've linked Erving Goffman's as an example.
Valerie Barker. "Older Adolescents' Motivations for Social Network Site Use: The Influence of Gender, Group Identity, and Collective Self-Esteem." CyberPsychology & Behavior. April 2009, 12(2): 209-213. doi:10.1089/cpb.2008.0228.
My Facebook and social info tech bib I mentioned at the meeting; it's ugly and it's a work in progress, but it's now in a public space so maybe it'll be good for someone.