I am getting good amount of traffic on my proxy sites like 500 UV daily but I need a CPM network which accepts proxy sites. I have tried Smowtion but they don't give any earnings after 1500 Page views. Same goes for Adbrite.
proxy sites are barely profitable these days.. I was going well with adversal until they reduced their CPM from 1.10 to 0.50 all of a sudden.That means you will be earnings only 1/2 of what you were making an year ago..see how funny it can get.. adversal sucks..
I doubt if there are any CPM agencies. Adsense do have some CPM advertisers but not all. CPA even do not have many CPM and its also not possible that any one would prefer giving their ads in proxy...
Most of the best CPM Agencies Won't allow proxy site. but even you can use adbrite they will never look into your site since i have seen adbrite is using on some of adult and proxy sites