Mood Mapping

I love this!  The Complexity and Social Networks Blog from Harvard University have a post with an animation of how they mapped the mood of the US by mapping people's happy and grumpy tweets on Twittter!  It's fascinating, as the blog says you can watch "the pulsating 24-hour twitter mood cycle of the United States", the moods appear to change in waves across the country.

Click here to take a look