I noticed that last few days (4-5) my ads revenue for click is lower than in the past. (also my total adsense revenue ) Did you see the same in your sites?
Yes, I was fortunate enough to start developing other revenue streams last year, and I am able to deal with the drop. The way I look at it, the less google pays, the easier it is for other competing services to the thrive (and you can already see this happening).