Google AdSense is a program which has left just about everyone in the dark. If I adverstise with Google AdWords and opt into contextual based adversiting, I will not know what sites my AdWords ads appear on as AdSense ads.

Google does separate out the AdSense ads into their own group for tracking purposes, but it does not show any more than group level details.

On the publisher side AdSense publishers were also left equally in the dark. They had no way to track what ads and formats were performing best...until AdSense Tracker came out. Dan Grossman recently created his product which will show what AdSense ads are being clicked on and performing. Each page that is to use this feature need a snippet of java code placed on it. The java interfaces with a single MySQL database used to track everything.

AdSense Tracker is a low quality bait and switch site that I no longer link at or recommend in any way.

(found on Search Engine Journal)