Twitter Visualization Shows Real Data

Now here's a visualization with real practical data that *anyone* can use - by inputing their own data or the data of people they know. It's a great example of a single-purpose visualization that has broad applicability. It's a very useful UI for one kind of data. The scary thing is that it makes implicit personal connections very very explicit. This is the world into which we are already in... for better or for worse. 

Article:

http://www.readwriteweb.com/archives/the_inner_circles_of_10_geek_heroes_on_twitter.php

Visualization Tool:

http://twitter.mailana.com/

Example:

http://twitter.mailana.com/profile.php?person=timoreilly&

Image of Tim O'Rielly's influencers: