NomadMan - 8:35 am on Apr 10, 2012 (gmt 0)
And that is, flood the visitors with the same ads everywhere they go.
And that might well explain the occasional high paying click from a visitor "pinned by google" with high value ads. It could happen on a page that never had such a high payout in its entire existence. I got several examples of those now.
But still - it seems there are still times where site content & ads match, reverting to the old style Adsense pattern.
I have a few pages where the ads always match - whatever trick i play. Even upto public computers at banks, libraries or using anonymous VPN lines that get me into another country.