You know those “you bought this, so you might like this” recommendations on Amazon? Turns out, a real live human helps ensure the recommendations you see aren’t too out of whack.
They log in to the Amazon Mechanical Turk site and are presented with two products. If one doesn’t belong with the other, they say so. For every match they identify, they make a few pennies. There’s still an algorithm, but it’s receiving crucial help from an army of low-paid workers.
NPR’s Planet Money team thought of a clever way to interview some Turks. Check it out here.