mattb - 7:52 pm on May 21, 2008 (gmt 0)

You can use a log file analyzer such as Click Tracks Analyzer. It will give you the 3rd party site domains with bounce rate and ecommerce data.

Be prepared for ongoing work banning domains as once you ban a few, others pop-up in their place. I do not think there is a list as the list would constantly change.