Originally Posted by John at Webflyer
Sorry, you're wrong. Tribal Fusion would be able to track their own cookies on other sites that use Tribal Fusion. They can't use cookies to track your activity on all of the web.
DoubleClick can, and does:
http://www.hal-pc.org/journal/may02/...rs/tumors.html
Are the DoubleClick cookies coming from Tribal Fusion ads, or somewhere else?