On this site, for ease of use, I will start with Adsense.As Kurt has said many times, you need to have varity in your pages.
Normally it is a pain to change ad placement.
But what I will be doing shortly is reloading pages 100 x 5 = 500.
Each set of 100 will have adsense in different areas.
top
top right
top left
bottom
bottom left
etc
Each set displaying ads in a different format. This should also help in keeping the readers from having banner blindness. Every other page the ads will show up in other locations.
kelvin