This video shows the pulse of the Twitter nation in relation to mood (a small percentage of the actual nation), but I thought it was interesting none-the-less. A few random thoughts:

• I’m from Minnesota, and I always thought Minnesotans were considered nice. Are the twitterers showing their true colors via Twitter?
• Are the Twitterers from North Dakota and Iowa alway pissed off?
• How much does weather play into happiness… is that why Twitterers in California always seem happy?

See more interesting nuggets on the U.S. mood throughout the day from Twitter.