I just played around with a site called TweetStats and got some fascinating information about my Twitter usage. There's an option to generate a tweet cloud based on the stuff you update about. Here's mine:
It's funny that @jennyjenjen is such a central part of my cloud. She's one of my closest friends, but this rendering would lead you to believe that we are married. We are not. She could do way better than my dumb face.
I will try and post one of these every month or so to see how my cloud topics change. Very fun.