Jane_Doe - 12:26 am on Oct 16, 2009 (gmt 0)

Comments?

I think dataguy that you have an interesting theory. One argument I have against it though is that I have a variety of sites on diverse topics, and I haven't noticed any drastic changes in the average CPMs. My low paying topics are still low paying, and my high paying topics are still high paying. So if your theory was correct, then I think that people like me with diverse topics spread among different sites, as opposed to someone like you with diverse topics on one site, would also see a melding of average CPMs. But for me that hasn't happened.

I'm not saying your theory is wrong, and it certainly is a logical possible conclusion based on your analysis. But you couldn't prove it by looking at my CPMs, either across my sites or even across my pages on each individual site.