New top story on Hacker News: Ask HN: How does Facebook know what I buy on Amazon or vice versa?
Ask HN: How does Facebook know what I buy on Amazon or vice versa? 113 by kmonad | 72 comments on Hacker News.Following just happened: An hour before lunch I googled and visited websites that sell bicycles. I also visited Amazon during this research. I then bought a bike from one of the manufacturers’ websites. A few hours later I browse facebook and see ads to this manufacturers’ bikes in my…