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After a day or so I notice that the CTR, the clicks, and the dollar value of the clicks has dropped. I check and find that the ads now being served up are now poorly targeted.
I can understand why Google would initially serve targeted ads as the pages are well known to Google already but find it strange that this honeymoon only lasts for a day. It is almost as if once the page is crawled for adsense purposes the opinion of the page changes. Is this normal adsense behavior?