The New York Times: Amazon Knows What You Buy. And It’s Building a Big Ad Business From It.

Updated: June 21

When a chain of physical therapy centers wanted new patients, it aimed online ads at people near its offices who had bought knee braces recently on Amazon.

When a financial services provider wanted to promote its retirement advisory business, it directed ads to people in their 40s and 50s who had recently ordered a personal finance book from Amazon.

And when a major credit card company wanted new customers, it targeted people who used cards from other banks on the retail site.

The advertisers found those people by using Amazon’s advertising services, which leverage what the company knows better than anyone: consumers’ online buying habits.

Read the full article to learn how ad agencies and brands are taking advantage of Amazon's expansion of a self-service option that leverages data on shoppers.