
I set up a Twitter account so that I could understand it for my job. The School Board I work for uses it and a lot of the principals want twitter feeds added to our web pages.
I've used it a bit for fun but it's so fuckin' noisy. Lot's of pointless one word tweets and people who tweet every 30 seconds for hours on end whether they need to or not. I find that mute is my best friend. :)