yes, somedays ago my eCPM was 0.90$ , 1$, now it's 0.10$, 0.05$ It's in only one website, the others are all right. I dont know what is generating this, I do not change anything in that website in last 30 days
Sounds like smart pricing. Read all about it: http://www.jensense.com/archives/2005/10/one_poorly_conv.html
That's insane. Unfortunately with such little information, and the website not being my own, I'm not able to offer any insight into the matter.
thanks, I'll try update it tomorrow. Nice that article "smart pricing", I have a website with good CTR and eCPM (3% and 1.2$), maybe link exchanges between them could help-me ? or it will damage the good site?