graphing online communities

I've mentioned several times that companies need to understand and even visual their Corporate Social Graph. However, how would you go-about visually reprsenting an online social network or community?

Those clever people over at Orgnet think they have the answer:
http://www.orgnet.com/community.html

This diagram, looking more like a scientific / physics experiment, depicts three different ringed regions of blue, green and red nodes. This work (termed the 'field of social network analysis') also offers some useful insight about the connectivity of users

Node counts are important in social networks, but it's the relationships -- and the patterns they create -- that are key

Insightful stuff! If you want to get further insight, you'd better read the blog of Valdis Krebs (the Founder and Chief Scientist at orgnet.com) at
http://www.thenetworkthinker.com/