Amazon has a growing ad business, but its ad infrastructure doesn’t seem to be as developed as Google’s or Facebook’s. For instance, ad buyers think Amazon Marketing Services — a self-serve paid search marketing tool that is supposed to help advertisers efficiently run search campaigns on Amazon — requires lots of manual work, and its reporting is inefficient.
For now, AMS offers three ad formats: sponsored products that appear below search results on Amazon, headline search ads that show up above search results and product display ads that are located on corresponding product detail pages.