How is it confusing? Most brick and mortar stores show ads for specific products. Online platforms other than Amazon do it too.
The only thing is that Amazon is more diversified than other retailers, in particular, they have AWS, essentially selling the platform that runs their website to third parties. It makes sense for them to offer sell their ad service to third parties too.
The only thing is that Amazon is more diversified than other retailers, in particular, they have AWS, essentially selling the platform that runs their website to third parties. It makes sense for them to offer sell their ad service to third parties too.