Ok, it was about a month ago, but in case you missed it...
YouTube recently had an interesting collaboration with CBS for the Grammys. They put out an open call for string and brass musicians to audition by posting YouTube videos. The top 15 performed on stage with the Foo Fighters on their song 'Pretender'.
What I found most interesting was that even a month later, YouTube did not have the actual performance avilable to view. It felt like watching the teaser of a great movie that was never released. Googling any term including 'mygrammymoment' was hopeless - you only got the 'official' YouTube site (bear in mind YouTube is now owned by Google). I finaly figured out by Googling 'grammy awards 2008 foo fighters' I could find the actual performance from a less official source.
I'm not entirely sure what I feel about all of this. Its an interesting concept, combining the music, broadcast, and internet industries, but I felt the performance only used the winners fo about the last minute of the song as a flashy finale - it didn't quite do them justice. But I guess that is what the YouTube component was for.