>It's not even just everything you buy from Google--from the post it seems like they actively compile and organize the data from every purchaser transaction that touches your GMail account.
Google literally buys a copy of most people's credit card transaction data.
>Google has been able to track your location using Google Maps for a long time. Since 2014, it has used that information to provide advertisers with information on how often people visit their stores. But store visits aren’t purchases, so, as Google said in a blog post on its new service for marketers, it has partnered with “third parties” that give them access to 70 percent of all credit and debit card purchases.
Google literally buys a copy of most people's credit card transaction data.
>Google has been able to track your location using Google Maps for a long time. Since 2014, it has used that information to provide advertisers with information on how often people visit their stores. But store visits aren’t purchases, so, as Google said in a blog post on its new service for marketers, it has partnered with “third parties” that give them access to 70 percent of all credit and debit card purchases.
https://www.technologyreview.com/2017/05/25/242717/google-no...