GraphIn this article by Paul Kedrosky (CNET News.com):

Dow Jones Insight is applying text analysis to thousands of documents to measure trends, such as favorability and issue coverage of the presidential candidates over time.

(You can see the rest of the “graphs” here.)

Dow Jones Insight, Nielsen BuzzMetrics and BuzzLogic are 3 companies offering similar data mining and data visualization analysis through text/media parsing.