So I did a little Alexa sleuthing (yeah, yeah, Alexa is not definitive but nonetheless interesting) about 'social networks for good' for our next newsletter which will focus all on "communities for a cause." That with the NTC coming up - our own little 'community for change', of course - for ultimate bonding. Call is cross-marketing...

The picture is rather fascinating, comparing some of the more well-known sites Facebook, the overhauled Ning, MySpace, Idealist, and the new Change.org.