180k daily visitors rapidshare search site find CPM or PPC AD network

My rapidshare search sites have 160,000~180,000 visitors /day now.
I’m finding the right CPM or PPC AD network.
One site’s traffic preview (countries):
1. Brazil 39,234
2. Vietnam 8,909
3. Mexico 8,232
4. Japan 8,127
5. Spain 5,953
6. Greece 4,582
7. Argentina 4,503
8. United States 3,534
9. Turkey 3,278
10. France 3,188
Please suggest some.
Thank you

See original post by testtest22