JCKline - 12:44 am on Apr 8, 2012 (gmt 0)
This is merely a hunch, but my earnings were OK (still below average) until today, CTR above average, but CPC is garbage (even in the US). The only thing I did (two days ago) IF IT IS ME, is I used the new "shown ads" interface and blocked a bunch of ads that I thinks are just...bad. Maybe some of these ads were raising the eCPM, CPC. Now I get an increase in CTR, but earnings are horrible. I will see what happens tomorrow, and if it's just as bad at the end of the day, I'll start unblocking to see.