This is just incredible...

'At the core of We Feel Fine is a data collection engine that automatically
scours the Internet every ten minutes, harvesting human feelings from a
large number of blogs. Blog data comes from a variety of online sources,
including LiveJournal, MSN Spaces, MySpace, Blogger, Flickr, Technorati,
Feedster, Ice Rocket, and Google.'

Click on: 'Open We Feel Fine'

http://www.wefeelfine.org/