Following the my current trend of looking at something seriously if it comes recommended from multiple unconnected people, I've just signed up for a Twitter account. You can track what I have to say at http://twitter.com/marcmagus (or subscribe to my RSS feed there) if you're not a member.
I'm not sure what I'm going to use this for, if anything, but I think it might be subject to those random thoughts which catch my fancy and which I want to share with friends, but which aren't substantive enough to feel like they justify an LJ post. I may also use it to explicitly state publicly that I'm adding something to my Hiveminder tasklist, if I want people to know or want to be bugged about it or something. We'll see.
Note that my text messaging plan still charges me 10Â¢ per message either direction, and that trying to enter anything on a phone keypad seems to be really bad for my hands, so I probably won't be using the SMS integration much, if at all. Which is too bad, as that could be kind of neat.