My local government uses Twitter. I have been following them for a while now and I'm generally pleased with how it works. They tend to tweet a lot of dull things like links to meeting minutes, but how interesting can local government really be?

It came in handy a while back when I woke up to find out that a street was closed due to emergency water line maintenance. Sure it's just a little thing, but it saved me five minutes of finding out the hard way during my commute.