You can easily check my work, just click trough the screenshot gallery. I've created a Drupal project page too. If you are interested in installing the stuff, you can download a tarball here (not suggested on production site yet).

At my blog you can track my work altough I think I should create a summary here too.
Let's see:

Here is the social network map of http://2006.planet-soc.com/ site (thanks to Angela Byron the help). You can find the source code of my work at drupal cvs. Now I can generate graph from nodes[-]comments, buddylist and accesslog. The graph visualization is done by graphviz. (the graph represents a little bit old state of the site) . Here the nodes and the comments are the base of the graph.