rlopes - 5:57 pm on Mar 14, 2013 (gmt 0)
In the last 7 days I've seem a drop in my RPM (earnings for each 1000 impressions) from about $40 to $25.
The CTR has dropped a little bit, and the CPC dropped quite a bit.
As I was sure to be Smart Priced, I decided to start showing ads only to visitors coming from SEs.
What impresses me is that my CPC is the same now as it was before, even though I expected the visitors from SEs to yield a higher CPC.
Now I'm not even sure if I'm Smart Priced, and/or if I should keep showing ads only to SE visitors.