Media Cloud tracks ebb and flow of global conversation

The love child of Swivel and Wolfram Alpha, IdeaFestival alumn Ethan Zuckerman's latest project, Media Cloud, is an open source effort to track, map and measure the global conversation. New York Times:

What Media Cloud offers that no one else does is a tool anyone can use to answer all sorts of questions about the media landscape. One topic that [Harvard Law Professor Yochai] Benkler and Mr. Zuckerman have long been debating is whether the Internet has helped open up the public sphere to more voices, or whether it just serves as an echo chamber, simply repeating information and views that the mainstream media already circulate.