Same here, earnings have dropped a bit for the same traffic. I think G is not paying nearly as much as it used to. I am looking at other ways of making money off my big sites. I think I will remove Adsense and probably sell ad space directly. FFMG
I started creating websites to make money since i was 11. 10 years later I'm now 22 with experience. My first advertising check took me about 4 years to get when i was about 15 years old.