I put Yahoo Publisher ads on a few niche mainstream blogs to test the relevancy vs. Google Adsense.. anyway. I got a page not found error on a couple of ads that I tested.. I emailed Yahoo Publisher support.. their csr's click a few links.. their admin's clicked a few links, their tech's clicked a few links.. then told me that they only work properly with normal security settings in your browser........................................... ...
then 2 days later, I get an email telling me that my account has been cancelled for POOR TRAFFIC QUALITY.. and they were the one's doing all the clicking.. sent an average of 9 clicks a day.
All I can say is..... YaWho?