When an online user views or clicks on an interactive unit delivered by ZEGO, non-personal information is collected such as the browser type, operating system, IP address, date, time, page content, interest category, country and whether or not the user responded to the interactive unit. This information is stored ... indefinitely. Information stored in the anonymous user profile is gathered using cookies... ZAQ commonly uses cookies, as well as webprints (invisible tracking elements placed on a web page), to determine which interactive ad unit users have seen in order to ensure they see new interactive units each time they view a page of a website. ZAQ also allows marketers to use information collected by cookies to target the delivery of online interactive unit, based on broad demographic information such as content interests and geographical location, thereby enhancing the user's online experience. Non-personal information is also used for anonymous demographic profiling and reporting.