Information about Interest-Based Advertisements: <p>We may serve advertisements, and also allow third-party ad networks, including third-party ad servers, ad agencies, ad technology vendors and research firms, to serve advertisements through the Services to Non-Student Users. These advertisements may be targeted to Non-Student Users who fit certain general profile categories or display certain preferences or behaviors (“Interest-Based Ads”). Information for Interest-Based Ads (including Personal Data) may be provided to us by you, or derived from the usage patterns of particular Non-Student Users on the Services and/or services of third parties. Such information may be gathered through tracking Non-Student Users’ activities across time and unaffiliated properties, including when they leave the Services.