4 ms·

Amazon already has been doing this as well. They started to recommend some items related with books I have never bought online, just after I got them at local

• Graphon1 9y ago
  Isn't there a difference? Google is sharing that offline purchase insight with advertising clients, rather than simply using that data itself, as does Amazon.
  • lern_too_spel 9y ago
    Where the advertising client is the local bookstore that he purchased the book from.