Pixel Tags. In addition, we use “<b>Pixel Tagsb</b>” (also referred to as clear Gifs, Web beacons, or Web bugs). Pixel Tags are tiny graphic images with a unique identifier, similar in function to Cookies that are used to track online movements of Web users. In contrast to Cookies, which are stored on a user’s computer hard drive, Pixel Tags are embedded invisibly in Web pages. Pixel Tags also allow us to send e-mail messages in a format users can read, and they tell us whether e-mails have been opened to ensure that we are sending only messages that are of interest to our users. We may use this information to reduce or eliminate messages sent to a user.