Amazon Fresh delivery — will it go national? - Puget Sound Business Journal (Seattle):

Amazon.com’s steady expansion of its Amazon Fresh grocery delivery service in Seattle is raising the question of whether the e-commerce giant will ever go national with the business.

By doing so, Amazon.com Inc. would position itself to grab a piece of the multibillion-dollar U.S. grocery industry. But there are dangers. The landscape is littered with dot-com era delivery companies (some of which Amazon invested in) that crashed and burned. And the grocery business is known for its razor-thin profit margins...