I think Amazon is the preeminent pioneer in building a new way of doing commerce: personalized, database-driven commerce, where the big value is not in the purchase fulfillment, but in knowing as much about a customer base of ten or twenty million people as a corner store used to know about a customer base of a few hundred. In today's mass-merchandising world, that's largely gone; Amazon is trying to use computer technology to re-establish it.
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