I saw a neat visualization tool that's still in beta called ICCARUS and this is what it does…(see below).  BTW, according to TechCrunch

"..ICCARUS is a new service created by social music and video recommendations startup Scouta. It creates a three dimensional visualization of the data behind a social networking or related website. ICCARUS also shows the social network between members, the memberships of groups, and the links between members and the content they enjoy. Navigate by clicking on points of interest, or searched using commands. Results are dynamic and are delivered in real time, providing an instant visual representation of the given network

 

The data is fetched via TurboGears and uses the GFX library to create the visual effects."

The data showed to me, so far, is not as impressive as the ability to show data relationships in Social Networks that I care about.  In a way, this ICCARUS reminds me of a product/service I just found out about called LogSavvy.