What is it with Adsense? Overall, I'm not complaining. Last year was my best ever year, and this year so far is up by about 18% on last year for the same period. However, it's just a constant roller coaster.
June was good, but I have experienced the same downturn since 29th June as reported by others. Sometimes it flies along - good CTR and good EPC. At other times - like right now - clicks dry up and when they do occasionally come the earnings are very low.
To compound matters, whenever I seem to get going again Google comes along and takes away my clicks and earnings. This has been going on for some time, but it seems to be getting worse. They used to just remove the earnings. Now they remove the earnings and the clicks. Unless you log in frequently and see what is happening, you are not even aware that clicks arrive and then disappear. I wish they would be more transparent about this - maybe a figure for the number of disallowed clicks and a reason why.
Adsense for search used to be quite good, but that has turned really sour. Clicks for search are down and earnings are way down. Some clicks register 0.00 earnings.