mattb - 10:42 pm on Feb 5, 2008 (gmt 0)

We use Google Analytics so we don't have anything to analyze and pull out non performing sites. All of the referrals just show up as Yahoo PPC.

We are looking at a log file analyzer to pull out as many partner sites as possible. Hopefully this will help. We've also shutdown some of the campaigns that were performing the worse than others. That said our spend on Yahoo PPC is 2x more for the same ROI as what we are averaging on Google, MSN, Nextag, etc.