Re:Report: Click fraud at record high (17.1% of all clicks)
by teej on Wednesday January 28, 2009 @11:45AM
(#453997)
Advertisers can also track click sources, and eliminate those with lower-than-average conversion rates. There are plenty of reasons they would want to do this outside of click fraud.
And the advertisers still get 83% of result, so its not like they spent thousands to get 0 results