Our advertisers use harmless cookies to see which web pages referred you to their products. Cookies are text files that are placed on your computer, through your browser, by web pages that you visit. They may record information about, e.g., which web page you were visiting when you clicked on one of their advertisements. Note that cookies are placed on YOUR computer, not the computer serving the website that you are visiting.
The security settings of your browser will have options for deleting and/or blocking cookies. Note, however, that many websites cannot function properly without cookies.