Venkat Balasubramani, inspired by Marshall Kirkpatrick, recently explored the legal issue over who "owns" your Twitter account: you or your employer.
Most people signed up for their own Twitter account, but many have used them in connection to their jobs, and the issue that kicked off Venkat's discussion was the recent firing of CNN's Rick Sanchez, who had a large Twitter following, which he regularly tapped into as a part of his job at CNN.
The summary: um...

I don’t play World of Warcraft anymore.