I noticed that the header adsense ad on DP is rotated, changing color once every impression. It does catch my eyes once in a while (and usually I am ad-blind). Does anyone have some stats to share about the change in clicks once this technique implemented? Thank you.
Woops. Mods, please move the thread to the general adsense forum if you feel this is not in it's place. I do..
My CTR increased about 30% when I started using this method. My site has a lot of returned visitors - it can be important.