Check out
JuicyAds - not PPC - flat rate spots, across a diverse network of freesites, tgps, etc.
Heres some examples of the lost cost per click on the network:
Highest Value (low cost per click):
Hot Babe Portal $0.005/click
Teenie Shower $0.006/click
Underground Videos $0.006/click
Teen Skirtz $0.007/click
Tight First Timers $0.007/click
Virgin Party Girls $0.008/click
Little Teen Cuties $0.008/click
Teens In Pantyhose $0.008/click
Babes Hunter $0.008/click
Drunk in the Club $0.008/click
Highest Clicks (daily clickthroughs):
Dumpz 2866/day
Free Sex Door 1857/day
Babes Hunter 1752/day
Tight Teenies 1383/day
Hot Babe Portal 633/day
Wild Thumbs 630/day
Teenie Shower 575/day
Underground Videos 569/day
Party Galleries 486/day
Non Nude Teens 484/day
Check it out! You won't be disappointed, especially at those rates!