The good news is that the incidence of click fraud appears to be lower than the disturbingly high figure of 20% to 40% that has been suggested.
The bad news is that at 14%, that's still a lot of bad clicks.Any company losing 14% of its marketing budget should sit up and take notice. As the Click Fraud blog notes, "It still means that click fraud could account for over $750 million in 2006." I suspect Google will look very smart for settling its click fraud problem for a mere $90 million, at least until cases brought by other companies come to trial.
The subject is sure to come up at the Ad:tech Conference in San Francisco next week.