It is a bit of an understatement to say that Amazon’s infrastructure business is impressive. Conjure up some appropriate superlatives in your own mind to describe it.
Here is what I think they should do next with their infrastructure: build a search engine and expose its capabilities via the AWS API, and charge for it. Miniscule amounts of money for each search query and let others build value added services on top of it. Once the underlying foundations of a search engine are taken care of, competition will thrive in the search engine space.