Visualization of names and words used by Presidential candidates: "
By Jesse Robbins
The New York Times has a really interesting Circos/Clusterball style visualization of the names used by US presidential candidates to refer to opponents in the debates preceding the Iowa caucuses. (Link)
A graph of common words used by candidates in the debates is available as well:
Link (via information aesthetics & visualmethods.blogspot.com)
O'Reilly Radar - http://radar.oreilly.com/