twistori. It was developed by Amy Hoy and Thomas Fuchs and it has a pretty simple premise. It takes a search feature from Summize to pull in six popular verbs associated with feelings and scrolls them in a story like format.
People don't typically pour out their rawest emotions on something like Twitter, but by capturing terms such as Love and Hate, you can often times capture someone's true feelings about life, their friends, their job, technology..almost anything.
So if you have a few minutes, it's worth checking out. Sometimes you can see both the best and the worst of humanity in the simplest of emotions.