panopticon scrapes information from Facebook about your friends, their friends,
and so on ad infinitum.

panopticon has three modes:

  1. Systematically constructs a graph of a user's friends, their friends' friends, their friends' friends' friends, ad infinitum. Alternately constructs a graph of a group, group members' friends, etc.
  2. Scrapes arbitrary information in order to annotate that graph of user IDs (e.g., political orientation, sex, name).
  3. Renders the graph.
It's work-in-progress, but you can get it here. You need python, pygraphviz and networkx. Total Information Awareness.