Hello Kevin,
Although I understand Adsense Arbitrage (advertising on Google Adwords to get higher profits on Google Adsense) I don't do it. I really don't like Adwords since I lost my shirt a few times!
I have never made any real money with Adwords because my keywords are too expensive. I don't have the budget for testing for better cost ratios so I'll have to pass on PPC for now. I remember seeing a formula somewhere in the past to determine the proper ratio but it never worked for me.
Butch
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