G has done this for the past 8 years, if you have AdSense, it is not a question if you get banned, but when you will get banned.
What surprises me much more is that there is still no valid alternative. After 8 years! MS has tried to build something and failed. Y! of course failed. Then there's Entrieweb's SpeedyAds which are so bad I think they are not even working on them any more. Nobody seems to be able to build a system that is as efficient as G's in matching content with ads, even thou it would be highly profitable.
Have they already figured out how to run ads on their own site efficiently? I think CTR and RPM are still unsolved issues for Fb. I may be wrong, never bought Fb ads myself.
What surprises me much more is that there is still no valid alternative. After 8 years! MS has tried to build something and failed. Y! of course failed. Then there's Entrieweb's SpeedyAds which are so bad I think they are not even working on them any more. Nobody seems to be able to build a system that is as efficient as G's in matching content with ads, even thou it would be highly profitable.