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i had browse throught many forum even ebay. I wonder is the Pay per click Search engine so earning-able?? Coz they mention the CTR can reach >20%, and they even use ebay, amazon, etc API to grab those content to their website. So, once they click Book, they will see a list of amazon hot selling book. i really suspect on the % of people buy from there. Else, why the author selling out them?
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