Hey guys, A few weeks ago I optimized ad placement for AdSense on a site. The earnings went up nicely and I reached a better eCPM. Unfortunately now I have to look at an eCPM that dropped about 50%. Actually I even managed to increase my traffic and get more clicks. The earnings dropped, a lot. Does anybody have a clue why this is the case? I know that there could be several factors like advertisers spending less, but maybe there is something I'm missing. Thanks for your responses in advance. (I know that there were several threads about similar topics here, but I would like to open a new one since the others did not really match that much.)