Google’s business model, like many others around the Web, has been to build a profile of its users and deliver them targeted, high-value advertising, paid for its advertising partners. In return, users get access to a wide variety of different services, from Maps to Gmail to Picasa, whose data can be integrated and shared.
Google representatives declined to comment further.
The policy doesn’t explicitly distinguish between what information Google collects if the user is logged in and if he or she isn’t, although Google did make clear that it logs search queries for accuracy’s sake. After 9 months, it anonymizes the IP address of the search request, and cookies in its search engine logs after 18 months.
Google said it collects information that users provide, such as an email address, user name, password, and in some cases a mobile phone number and credit card, for Google+ and Google Wallet, respectively. While using Google services, Google may collect information including the IOP address and device ID of the device you’re using, cookies, and pixel tags.