The writer of the blog Pure Cognition has written an interesting essay about Twitter, and how people are using it to communicate, and network:
"When I first read about Twitter I excused it as useless. I figured it was more "noise" contributing to the signal-to-noise ratio of the interactive web...enter human genius. ANY TIME you forget to take into account the effects of human creativity and genius, you will be wrong. And, I was wrong.
Twitter ended up becoming almost every type of application. It ended up with many faces...fueled by the human minds."