Forum Moderators: martinibuster
I regularly re-arrange the ads on a page (on each page load, not whizzing around like demented bees!) to reduce ad-blindness. It also helps me to get nearly 100% ad-space fill with a combination of CPM and PPC ads.
I don't think using a different arrangement on each page load is any sort of problem, indeed I just had an email exchange with G confirming that I am within ToS.
Rgds
Damon