links for 2007-12-17

• On Facebook, Scholars Link Up With Data - NYTimes article
  A brief article on the potential of Facebook as a tool for studying the processes of tie formation - reporting work by Prof Nicholas Christakis (Harvard). (via Valdis Krebs)
  (tags: simmelian triad closure facebook social network analysis privacy)
• Role Models for Complex Networks (Jörg Reichardt and Douglas R. White)
  "a framework for automatically decomposing ("block-modeling'') the functional classes of agents within a complex network ... can handle both two-mode and one-mode data, directed and undirected as well as weighted networks and allows for different types of
  (tags: multimodal bipartite blockmodelling functional structural equivalence hypothesis testing valued fit modularity roles)