For some strange reasons, in the last 3 days, I have been getting around the same number of impressions and CTR, but my earnings have became 1/5 of what it was before. This really stinks, avg cost per click was $0.5, now it's $0.1 in these 3 days. Have I been smartpriced? I started using adsense less than 1 month ago on a new site, I was earning about $7-8 per day up until last week and boom, now I can't even get $2 with the same impressions and CTR.
Sounds like smartpricing to me! Or did you change the content or layout of your site? That could have led to cheaper ads.
I suggest give it a couple more days before you start taking any action. its probably to early to tell whether its smartpricing.
Same here.. 2 days dropped about 50% .. but today back to almost normal ... at least we know its across the board .. -Vince