The US08 Media Watch provides a comprehensive and continuously updated archive of media coverage on the US Presidential Election 2008. The project analyses the Web sites of the Fortune 1000 (the largest US corporations ranked by revenue), 50 environmental organizations, 1000 popular blogs on political issues, and international media from the US, Canada, United Kingdom, Australia and New Zealand.

Processing these sites yields more than 800,000 documents each week. Automated algorithms identify attention by counting references to a candidate, and measure sentiment by associating these references with positive and negative terms. Keywords, grouped by political party and geographic region, reflect current events associated with the candidates.

Interactive visualizations help understand the complex semantic relationships (information landscape, geographic map, ontology graph and tag cloud; the ‘Help’ function provides a detailed interface description).