</li> <li>Web Beacons (also known as “clear gifs,” “web bugs” or “pixel tags”) – “Web Beacons” are tiny graphics with a unique identifier, similar in function to cookies, and are used to allow us to count users who have visited certain pages of the Sites and to help determine the effectiveness of promotional or advertising campaigns. When used in HTML-formatted email messages, web beacons can tell the sender whether and when the email has been opened. In contrast to cookies, which are stored on a user’s computer hard drive, web beacons are embedded invisibly on web pages.