I have started using Twitter recently, and I really like it. Those readers who visit slashboing.ca directly have probably noticed this new addition to the blog sidebar, however those who read via an RSS or Livejournal feed have missed my tweets.
I can be followed here: twitter.com/Drhaggis
I also joined Twitter because I didn't want any other 'Dr. Haggises' from taking my username. Also, I really like the "what are you doing now" miniblog aspect of Facebook, but little else about it. I may even be deleting my Facebook account now that several high school friends have found me and its purpose has been served. I'm using a lot of different social networking sites, and I have to chose the right ones for how I actually want to network.
Now instead of having to create a full blog post simply to publish a quip, question, or bon mot, I can twitter it.
Also of note, the Mars Phoenix lander has a feed and he posts regular updates of his progress on Mars. It is done in a casual first-person style that makes it really fun to read.
Tweet you later.