I recently read in an ebook how to create a "traffic middleman" site with Adsense ads on it for a highpaying keyword, and you bid much less money as an advertiser for the same keywords on a smaller PPC service. I think this is the called arbitrage, right? Is this against the Google terms of service? Or is it only a violation of TOS if you are buying Adword? Is there any reason for Google to care if you are doing it with ads on another PPC?
Thanks for any help. I don't want to lose my Adsense account, which I've heard has happened with arbitrage sites.