Hi: Google exposes the algorithm of computing actual CPC. current ad's actual CPC= (the next lower rank ad's rank value/ current ad's quality score)+0.01 cent. I cannot find such info for Yahoo. I thought Overture use the Max CPC you set. But yesterday I had a campaign in Yahoo and found the average CPC is less than the Max CPC I set. What is the algorithm of Yahoo to compute actuall CPC? Thanks Tim