The popular Youtube.com hasn't been hacked, it was just down for maintenance. It's such a media sweetheart I thought it was probably only a matter of time before it got hacked.
In semi-unrelated news, Digg.com is down (2) (3). Earlier this week IMDB jumped the cliff, all of its actor references went missing. When I went to see who starred in "XYZ" it had a blank where it should have a name and a link. Kudos to IMDB for making a partially functional site. Curses that that one of their two most important assets (actor info vs. move info), went AWOL.