Yes WTF ... Google is behaving very strange. From last week they are paying very low. Yesterday on same site i got 2.05$ For 150 Clicks and Today 2.65$ for a Single Click .. Where were those 2.65 Dollar clicks yesterday ??????
Nah ---- No Fraud CLicks i Bet... My CTR is 20% from lst 15 Months and I was earning Average 15$ / 150 Clicks and now its down like hell Each click is orignal on my sit no fraud clicks....!
Well Thats Awesom....! I dn't say google pays low for my evri site but the stats i told above my daily for one site and its related to image hosting. some times pay good and sometimes just like that ... I too have sites which always make 1$ per click but have very low clicks on them Thanks
This is known as keywords research. if you are using very particular keywords with high competition then the ads are relevant and you will get high click value
In adsense some days are good and some days are just not good. Same thing happened to me but now things are back to normal.