Data aggregators and warehouses that will sell you practically anything the entire marketing industry knows about you, for pennies each ad bid. Seriously, ever

Data aggregators and warehouses that will sell you practically anything the entire marketing industry knows about you, for pennies each ad bid. Seriously, ever added a credit card to your Google account for android apps? Google knows all your MasterCard transactions. Probably the same for Visa, just unleaked. https://www.bloomberg.com/news/articles/2018-08-30/google-and-mastercard-cut-a-secret-ad-deal-to-track-retail-sales https://www.bloomberg.com/news/articles/2018-08-30/google-an...