---- Three things I've noticed about AdSense lately
celgins - 1:37 am on Jan 29, 2010 (gmt 0)
The other thing to tank CTR is site targeting and Google has gone off the deep end in that dept. as far as I can tell which is definitely a CTR killer.
Site-targeting may hurt CTR, but it falls in line with "2. Some publishers reporting a general increase in average EPC." I think when quality advertisers find quality sites on which to advertise, they are likely spending big $$$ for those spots--even if conversions and ROI are not yet proven.
But on the subject of the number of advertisers shut down, the article I read indicated it was about 30,000.
Yes, but instead of that number, I'd be more interested in knowing how many ad campaigns were axed. Those 30,000 could have had 300,000 campaigns consisting of low-quality ads and low-quality landing pages.