How Does Facebook Know What's In My Amazon Shopping Cart?

Re:How Does Facebook Know What's In My Amazon Shopping Cart? by davemel37 on Wednesday December 25, 2013 @05:17AM (#6962736)

This actually goes much further than you realize. There are companies buying credit card purchase data and plugging it into a Data Management Platform along with billions of data points a day and using that to buy their ad inventory from the real time ad exchanges. Were talking about mapping a purchase in a store back to a banner ad impression online.

I know of atleast one company actively doing this, and I am sure there are hundreds others.

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Re:How Does Facebook Know What's In My Amazon Shopping Cart? by jka on Wednesday December 25, 2013 @06:36AM (#6962828)

Thanks Dave - I didn't know the function of a DMP (or the acronym), so that's an interesting thing to learn about. Sounds like there are some real-time data auction houses for advert targeting as well, which is interesting.

I expect the volumes and retention of this kind of data are fairly unregulated at the moment? I certainly haven't heard anything consistent as a consumer about how this data is collected/used (also bearing in mind international considerations in many cases)

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Re:How Does Facebook Know What's In My Amazon Shopping Cart? by ismail on Wednesday December 25, 2013 @09:47AM (#6963077)

well that prob explains how when I purchase some dev screencasts on ruby, I get an email the same day with ruby books. the freakiest however was amazon recommended parenting books 2 months into my wifes pregnancy, before we had even started telling ppl.

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