Jon Kleinberg was quoted in The New York Times regarding his paper, "Meme-tracking and the Dynamics of the News Cycle," coauthored also by Jure Leskovec and Lars Backstrom about using the web to track and measure the news cycle. There is an interactive display of their findings at http://www.memetracker.org.

http://www.nytimes.com/2009/07/13/technology/internet/13influence.html

There is also an article in the Cornell Chronicle:
http://www.news.cornell.edu/stories/July09/NewsTracking.html