The Clear Congress Project [clearcongressproject.com] by Thomas Gibes is a real-time visualization of US Congress data made available through the Sunlight Labs' Real Time Congress API, Google News, Twitter, and other data sources. The aim of the project is to serve as a possible model for facilitating governmental transparency beyond simple data access by proposing a new format for polical news distribution.
The scatter plot shows the Representatives and Senators as a collection of two-colored bubbles that are mapped against 2 axes: Leadership (i.e. sponsoring popular legislation versus other's legislation) and Partisanship (i.e. Democratic versus Republican). The size of each bubble denotes the number of bills that were sponsored by the according politician, while the connecting lines reveal the sponsor/cosponsor relationships.
The Leadership score was calculated by subtracting the number of times a legislator cosponsors another legislator's bills from the number of cosponsors that a legislator's sponsored bills attracts. The Partisanship score was derived by the number of times a legislator works with members of their own party, placing them further to the left of the spectrum the more they work with Democratic members and further to the right of the spectrum the more they work with Republicans.
From this graph, one could for instance discover how all the members of the Tea Party Caucus show up above the mid-leadership line and on the extreme right (Republican side), or how the two current legislative leaders, Eric Cantor and Jim Gerlach, have garnered large amounts of historical bipartisan support for their past legislation. Alternatively, one can also perceive how the legislators who just signed a furious letter to Obama are all placed on the left side of the diagram, have no strong legislative leadership records, though still make up all of the Democratic leaders in Congress.