Via the New York Times:
Behind the scenes, the two companies are waging a war to become the pre-eminent online mall. And e-commerce sites large and small are caught in the cross-fire. As for consumers, the question is whether they will see a full range of products available online.
Google is a search engine, not a store, but it is increasingly inching into e-commerce with products like its comparison-shopping service, Google Shopping. At the same time, more people are using Amazon, a retailer, as a search engine to look for what they want to buy.
All those Kindle Fires being sold in the U.S. are helping Amazon sell even more products without customers ever going through Google.