c. Gifs. We may use ""clear GIFs"" (aka ""webbeacons"" or ""pixel tags"") or similar technologies, in the sites and in our communications with you to enable us to know whether you have visited a web page or received a message. A clear GIF is typically a one-pixel,transparent image (although it can be a visible image as well), located on a web page or in an e-mail or other type of message, which is retrieved from a remote site on the Internet enabling the verification of an individual's viewing or receipt of a web page or message. A clear gif may enable us to relate your viewing or receipt of a webpage or message to other information about you, including your Personally Identifiable Information. 