Anyone out there using Twitter? I've just started playing with it. Few-to-few twittering is clearly useful, for instance as a way to help a small group converge on a meeting place, receive travel updates, and so forth. I can't decide whether many-to-many broadcast twittering serves any purpose at all, though.
For those interested in helping me investigate the question, my Twitter name is kewms. You'll need to ask to follow me.