Advertisers that display Ads on our site (and other advertising services) may use cookies and pixel tags of their own to record your Web browser’s interaction with a given Ad. . This technique allows the Advertiser (and its providers of ad serving and other advertising services) to track how Ads are displayed, and which are clicked on, and to limit the number of times a given Ad is shown to you. . The use of cookies and pixel tags may also enable these Advertisers (and their providers of ad serving and other advertising services) to serve ads to our users based on their perceived interests as gleaned from their visits to this and other Web sites. .