Jonathon Cummings, professor of management at Duke University, has assembed a nice academic bibliography on social network analysis, which includes a form at the bottom so that anyone can add new entries. He also maintains a comprehensive list of network visualization software.
I first encountered Jonathon through his paper (co-authored with Rob Cross) "Structural properties of work groups and their consequences for performance," which you can request from Cummings here. This research reveals a negative relationship between heirarchical team structure and performance in complex non-routine tasks, over 182 small work groups in a global service organization.
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