While many of the ads are directly bought from the brands advertised, Playwire also uses carefully screened, 3rd party ad networks. These networks may use aggregated information about your visit to this site, such as the number of times you have viewed an ad (but not your name, address, email address, or other personal information), to serve ads to you on this site. Some ads are targeted specifically to the content within Math Playground.com and we have taken careful measures to ensure that these ads link only to family friendly advertisers. In response to the new COPPA rules, Math Playground.com does not permit behaviorally targeted ads on its site, and instead only shows contextually-based ads or other carefully-selected ads which are not based on a user's browsing behavior. <br> <br> If you would still like to know more about this practice and the choices you may have about not having your information used by these companies for advertising purposes, please see: http://www.networkadvertising.org/managing/opt_out.asp <b>COOKIES AND TRACKING TECHNOLOGIES</b> Math Playground may use the following technologies to collect information about your website use and devices. <br> <br> 1) Cookies<br> A cookie is a data file that is placed on your computer or device when you play games on Math Playground.