Quick question, do you guys count impressions or only clicks?
Its CPC ads network only
quote of RappelzReborn
This network displays both text and banner ads, and also boasts similar rates to Google Adsense. It also runs on a pay per click system.
Minimum withdrawal - 0.01BTC (No fee)
I understand that these sites pay for each ad click not to CPM and others for further information about bitcoin related ads you can see various sites here
https://bitcointalk.org/index.php?topic=1108616.0 all information provided in this thread.