Published at LXer:

In today's online retail market dominated by cut throat competitions, one player stands in the forefront, leaving the pack far behind, and that is Amazon. Amazon has been judiciously expanding its business model to satisfy consumer appetites, and I think Amazon Prime membership lies in the center of its expanding business model. Starting out as unlimited free-shipping membership, Amazon Prime has grown over time to include a variety of other perks, including unlimited streaming music, movies and TV dramas, unlimited photo gallery, free e-book library, and now same-day/one-day delivery.

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