[hnnewguy]

>As Boland explains it, Facebook simply shows advertisers that a given number of people who saw an ad for a product also purchased that product.

Facebook doesn't share my personalized shopping data with advertisers. That's good.

But the data still exists. So the data the advertisers receive is only really anonymous until there's some sort of security breach or economic decision whereby it's suddenly more profitable to sell the personalized data. Either or Both of which are inevitable.

All in all, a moderately informative marketing piece.

[bitwize]

Facebook doesn't share my personalized shopping data with advertisers. That's good.

The stuff about you personally that can be gleaned from market analytics will make you shit a brick.

And this is what private industry can do, not even getting into three-letter agencies.

[cpeterso]

> Facebook doesn't share my personalized shopping data with advertisers. That's good.

Facebook wants to keep the data inside their keep.