How would they do that?
I earn a few thousand Dollars per month through Adsense however I totally dominate the SERPS for my industry and I know, talking to other webmasters within my trade, that they earn practically zilch from Adsense.
Obviously I am always extremely guarded about saying anything!
Would Adsense want to keep me as the "premium" publisher for my trade? How would they entice me? Minimum click bid guarantees?