Recent reports that Amazon is in talks to sell advertising slots through third parties such as Apple TV, Xbox and connected TVs (CTVs) makes absolute sense in the context of its broader strategy to boost ecommerce sales. Until now, Amazon has been selling increasing amounts of ad inventory but just around its own devices, largely Fire TV, which fails to exploit fully the growing reach of Prime Video. While Amazon’s principal strategy around Prime Video is to boost sales of services and products through the site, it also aims to become a significant player in digital advertising and seriously disrupt the current Google/Facebook duopoly there. Amazon is still a minor player in digital advertising with its total ad revenue for…