Google tells you that you should mix things up regularly
to avoid ad blindness. I never did that, but noticed I was
getting a ton of traffic, and the clicks were not keeping up.
Here's what I did. I created another adsense layout from
what my normal one was on every page. I still have
2 ads above the fold, just different sizes and places now.
Every other article, I changed to the alternate layout.
It's worked pretty good so far. I was thinking of putting
some php code to randomize the ad placements and sizes.
I may do that. Anyone else mix stuff up?

Paul