Twitter Updater (a WordPress plugin). “The Twitter Updater automatically sends a Twitter status update to your Twitter account when you create, publish, or edit your WordPress post.” Fantastic idea—I really want this for my own site.
Sign in with 
OpenID
...and there's the advantage with not using proprietary weblog software; other people can write plugins to save you the trouble :)
I don't get Twitter. At all. I know what it does, but other than that I don't understand why it's so popular.
Am I missing something?
It's just like taking normal office banter online, except you get to pick who works in the same office as you.