wildbest - 8:41 pm on Jul 18, 2006 (gmt 0) Yahoo - 0% Google - 100%
MSN - 0%
Very low search volume and very low conversion rate. Basically, competitors clicking on each others ads.
Good volume but low conversion rate, mainly because there are too many fraudulent clicks coming from Yahoo search partners.
Undoubtedly they are the PPC monopolist.
Yahoo - 0%
Google - 100%