I think there's actually analytics available where their pitch is "use us on your website, and we can help identify users." They'll track you around multiple s

I think there's actually analytics available where their pitch is "use us on your website, and we can help identify users." They'll track you around multiple sites until you finally drop an email address in or fill out a form. Then all of the other sites you visited get the same information (that's the incentive to use their tracking system). Can't remember the name of the analytics company and my google-fu is failing me right now.