Online Grocery Shopping Poised to Be the Next Big Thing

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Pushing a cart through the grocery store may become a thing of the past for many Americans. Today Walmart announced the expansion of online shopping into eight new markets. Its brick-and-mortar locations have led to a different approach from Amazon and other companies that will deliver groceries to the doors of online shoppers. Issie Lapowsky, staff writer for Wired magazine, has more on the expansion of grocery shopping online.