I’ve tried it (with Pay Per Impression in mind), it works but it just slaughtered my CTR. And just because the Adbrite ad popped up, it doesn’t necessarily generate an impression. Ended up being a waist of money for me. After about 2 weeks of doing this my Alexa rank went from the 400,000s to 700,000s. Can’t explain why that was but when I stop using adbrite in this way my CTR went back up and my Alexa ranking also. If Adbrite allowed popup though, people would make a killin’! Adbrite dosn't seem to work well at all with "adbrite arbitrage" But regardless of my answer, Google still has the last say so. The technology Adbrite is using for Full Page Ads right now is not mentioned in Googles rules or TOS. My only concerns was that I found some of Adbrite’s publishers are using auto surfing sites and bots and have not been banned or detected yet by adbrite. This could indirectly cause a violation of Googles TOS. Knowing this now, I wouldn’t chance my adsense account again. Hope that helps.