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It's just Amazon cookies. In short, you didn't see the ad because of what Facebook know about you (though they'll know a great deal more than Amazon), just that
by confounded 9y ago
It's just Amazon cookies. In short, you didn't see the ad because of what Facebook know about you (though they'll know a great deal more than Amazon), just that the two cut a deal to allow Amazon to read Amazon cookies from Amazon ads on Facebook.