State-Machine Blog

Btu shows the historical U.S. energy production from 1949 to 2006.

No strings attached shows the connections between PACs and contributors. A video tour is available. Data comes from Sunlight Labs, the FEC and opensecrets.org.

Prevalence explores the relationship between conference attendees and interests.  Interests are derived from word frequency analysis of the submissions received from attendees.  Written for the IM2 conference sponsored by MIT.  Based on the source code for agency

Agency shows the relationship between political action committees and senators. Senators are represented as dots, colored by party.  PAC contributions are grouped by category and represented as green plus signs.  PAC approval ratings can be overlaid as halos around the senators.