I don't pretend to know how these ads work but after seeing where UPS is sueing some outfit over this, I always thought that pop-up ads were placed there by the website themselves for ad revenue. I was under the impression unless the webmaster or whoever placed it there, it couldn't happen. How does it work for Teamsters Gone Wild videos to be advertised on UPS.com? LOL! Just curious. Thanks. Maybe UPS should hire Cheryl to run their websites because pop-up ads don't appear here or at least I've not seen any!