To provide effective advertising . Many of our Services are supported by advertising, and some of our Services provide advertising on our websites and apps, and on third-party websites and apps. We use the information we collect and receive to make the advertising we provide more effective. Some of the ways we do this are: Showing you ads based on your online activities, such as the websites and applications you use, the content you view, and the searches you submit on those applications Limiting the number of times you see the same ad; and Measuring the effectiveness of the ads we serve. Learn more about advertising and privacy on our Services. 