This has been going on over the past 4 months, so I am getting really worried about it. After a good month of january things began to get really bad in terms of revenue. In fact, with increasing traffic, earnings have been droping slowly but surely for 4 months now ! But this is not the question. My question is : why do I see an increasing link between CTR and my daily RPC. The higher the CTR is, the lower the RPC and vice versa. Before January : CTR was consistant day after day around X% and earnings per click varied very little around 10% from the average Y. This resulted in "really bad days", "really good days" and "normal days" After January : CTR hardly ever reacher X% varying from X/3% to X% and RPC varies from a minimum of Y/4 to a maximum of 4Y which seems really enourmous. Moreover, when CTR goes up, RPC goes down and when CTR goes down, RPC goes up resulting in consistant daily earnings (no good or bad days) ! I do not really understant these phenomenon !! Can someone give any help.