farmboy - 5:29 pm on Apr 27, 2010 (gmt 0)
Maybe we should name this thread: Increasing ad awareness by Internet users leads to lower CTR.
Why would someone who reaches some level of ad awareness be less likely to click on an AdSense ad (that's what we're discussing, not ads in general) than before he/she reached that level of ad awareness?
If my hobby is growing green widgets and I see an ad for a new green widget harvesting tool, why would I be less likely to click on the AdSense ad than when I was new to the Internet? Why not assume that because I am more aware, I would trust the ad offered by Google instead of some unknown party and be MORE likely to click?