How's the Blogosphere Feeling?

This site - We Feel Fine - searches the blogosphere for phrases such as "I feel", "I'm Feeling" etc. and then collates them to view in an amazingly engaging way, you feel like you are poking about in a pool of emotions - link. It also takes information about the weather and where the person was posting from to provide some context and make it feel especially personal. There's a good description of it here.