For whatever it's worth, I'm now on Twitter. I'm still trying to figure out how to use Twitter in a way that is not frivolous but genuinely helpful. (Timmy Brister has some suggestions at http://timmybrister.com/category/twitter/)
My Twitter address is http://twitter.com/danielofaz
If you Twitter, please let me know your Twitter address too!
To the rest of you: don't worry, Twitter won't replace my blog. This will remain my primary avenue for disseminating important information.