I don't use MySpace as a logged in user, but rather as a radio station, since that's where some of my favourite bands post their new single. And yes, that makes me feel dirty.
"IT's knee-jerk reaction to social networking sites might be to block employee access from the corporate network."
danah boyd on "News Feeds". I don't have a Facebook so I only know of the story from reporting by bloggers.
Also a strange focus on the Dallas area.