Universal Music has been using some sort of spam program (quite a number of these available) seeding music message forums about new releases. I'm sure you've seen them around. Newbie pops up, posts the message, then exits stage left.
Apart from message forums, they also create MySpace accounts and YouTube clips. All part of some pa-hip "viral marketing campaigns". I guess its inevitable, but I wonder if I should carry these "ads" for free if they're posted on my system. Hmmm.