Point your mobile web browser to www.myfeel.mobi.  It’s a just small twitter emotions mashup app for mobile use. Perfect for morning ride to work. Web application is collecting Twitter feelings from user posts and showing them in different colors. Check out how much happiness, sadness and love are on twitter.

General search helps you can find anything that people write in your vicinity or certain location. How about finding who is now writing about work in London (in 10 kilometers radius from London center).

Check also statistics about human feelings on Twitter.com . It looks like mot of twitter users are in bad mode when use twitter. Any clue?