People are more willing to tweet something negative than positive.
Adam Rifkin stashed this in Twitter!
Scientists at IBM analyzed Twitter and determined that the majority of Twitter is for whiners, complainers, and haters.
I also learned from this article that "Every public tweet since Twitter's inception in March 2006 will be archived digitally at the Library of Congress. IBM plans to map every archived tweet to Wikipedia, and tag it with sentiment, to make them more digestible."
I wonder where I can learn more about that.