At first I thought twitter was just another stupid myspace thing. But I am beginning to see a bit of brilliance in some of it. It gives celebs (athletes and others) the opportunity to finally be the first to toot their own horn or dispell rumors. No one has to wait for an interview or for their pr guy to release a statement. It may BE their pr guy actually posting, but you can read it earlier, not have to dig for it, etc.
I signed on twitter just to get the news and cycling feeds. I dont post, but it is a lot more convenient to go to one place on my phone and get all the news I want, in a very concise format. Sure I could go to each page individually since they are public, but much much easier for them to feed to my own page.
It's like getting the espn/cnn news that scrolls across the bottom of the tv screen but it's everything you want, minus everything you do NOT want, right on your phone (and/or other compter)