netmeg - 7:27 pm on Jan 29, 2010 (gmt 0)

I wonder about the CTR factor. When they asked to be able to suggest optimizations for one of my sites, Google really pushed me to use more ad blocks. That made my ad impressions go way up, but the number of clicks didn't really change, as a percentage of traffic. That kind of artificially skews the CTR in my mind.

If I have 20 visitors in ten minutes, are they going to click more times if they see 30 ads instead of 10?

I dunno. This stuff makes my head hurt.