richard_p - 8:22 pm on May 7, 2010 (gmt 0)
"I maintained a CTR of 8% or better for YEARS."
If I had those kind of ctr, i could retire :). My ctr right now averages less than 1% but since I started seeing Interest based ads eCPM has doubled and ctr stayed the same. I'm happy to see some ads worth a dollar or more per click, haven't seen ads that high since 2 or 3 years ago.