Suitable ad-network for blogservice?
 

I'm currently searching for a suitable ad-network for a blogservice that I have created with Wordpress MU.

People can create adult blogs on my network which are created on subdomains. I want to have a revenueshare program for the bloggers. But to have this I need to be able to track how much revenue each blog generate.

Is their any good ad-network that also tracks how much each subdomain generates?

You and everyone else - Sorry, its not going to work...

I really am sorry....

There must be some solution to this problem. :/