Pulse of the Nation via Twitter

Researchers at Northeastern Univerity College of Computer and Information Sciences and Harvard Medical School have analyzed more than 300 million tweets from across the nation to get a pulse on the mood of the country.  Among the findings Twitter users on the West coast are happier than those on the East, and Sundays are happier than Thursdays.

The tweets from September 2006 and August 2009 were used to create a color-coded map indicating where the tweets came from and the “mood” indicated by the content of the tweets (green for happy, red for unhappy). The “mood” was inferred using a list of words that indicate positive mood.

To view the details of the Pulse of the Nation via Twitter, see the PDF here.

Found via Geek Sugar