stuartmcdonald - 7:20 am on Aug 3, 2005 (gmt 0)

Regarding testing Yahoo adverts vs Google, why not run a random key on each pageload that would determine which sets of adverts were diaplyed? Sort of like how a site displays a random "Pic of the moment". That way you could track total loads of each version and see how they compared -- you may get an increased CTR because users would be seeing a far wider variety of adverts than if you were running with just one program or the other.

As I'm outside the US, it will be a while before I can test a method like that as it looks like YPN is US only for now, but someone stateside could.