The Amazon Ads business has absolutely exploded. Last year it had sales of over $50 billion and has reached a point where demand has outstripped supply. In other words, there is not enough space on the top, sides and bottom of the Amazon website and app to put any more adverts.
In order to continue to grow the business , they have launched an ad tech product which allows retailers to use the same performance-heavy advertising technologies on their own websites. Amazon advertising has huge amounts of data and great AI capabilities which can make adverts very effective. Although these ads will not be on Amazon.com, using Amazon technologies will still be very useful.
Amazon Ads was built from scratch in-house, just like AWS (Amazon Web Services). This is testament to a very innovative, hardworking and entrepreneurial culture created by Jeff Bezos and his successors. We are very happy and loyal Amazon shareholders.