A new project is starting out: Faci, a.k.a. "FAcebook Cliques Interactions".
Faci is a Java tool allowing to analyze your facebook friendlist, and discover if people really interacts with each others, while they are in same groups - or if they are only "friends".
Source code Here
Here a movie from a running demo
And below, some screenshots, achieved applying some graph theory metrics to 'friendship' and 'interactions' graphs:
Facri Privacy:
the privacy policy are available at: https://github.com/k0smik0/FaCRI/blob/master/facri_privacy_policy.md
the privacy policy are available at: https://github.com/k0smik0/FaCRI/blob/master/facri_privacy_policy.md