Amazon is already there. https://finance.yahoo.com/news/amazon-is-quietly-building-the-most-powerful-advertising-machine-in-the-world-135753395.html https://fi

Amazon is already there. https://finance.yahoo.com/news/amazon-is-quietly-building-the-most-powerful-advertising-machine-in-the-world-135753395.html https://finance.yahoo.com/news/amazon-is-quietly-building-th... Interestingly, Amazon's move to ad placement seems to coincide with how terrible Amazon's search is. It's a pay-to-play free-for-all wasteland. Not too dissimilar to the SEO wasteland of Google search.