Ready for the next dot-corn shakeout? This one could come in the very solid bricks-and-mortar world—among the so-called fulfillment companies that store and deliver the goods for online retailers. Scores of these outfits have been racing to fill their warehouses to the ceiling with items as smail as a package of paintbrushes or as large as a kayak Now, however, it looks as if some of those shelves may carry only dust.
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