Be nice. He could have not told you about it at all. What then?
Here an article by PC world about it
http://www.pcworld.com/article/13927...d_service.html
Its officially called SelfServe by MySpace
AOL, FaceBook and a few others are using this as well (if this is what your talking about).
I copied this from another site:
MySpace SelfServe will start as a private beta before the end of the year (a handful of advertisers have already been testing the platform since July) and will be publicly available by early 2008. It’s a shame that it won’t be rolled out ready for the holiday shopping season. The ads will appear on user profiles and both image and text based options will be available.
Advertisers will be able to target based on geographic, age demographic, and user interest. Ten bucks will get you in the game and while the service will evolve into an auction based setup, initially it will run on a fixed cost per click. Pricing will depend on category, of which there will be around a thousand, plus sub-categories.
Official link? There isint one right now.

If I find the link Ill post it