The weekly grocery trip is no longer just a trip. Many shoppers are ordering groceries from their phones, using delivery for last-minute dinner ingredients, medicine, pet food, baby supplies, and ...

Amazon is rolling out 30-minute delivery across dozens of U.S. cities, marking its fastest shipping option yet as the retail giant continues to accelerate its push into ultra-fast fulfillment. The new ...

Amazon says more than 5 billion items now arrive the same day or next day—up more than 30 percent year-over-year. And it seems the online marketplace is dead set on expanding this number even further.

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The rollout marks a new stage in Walmart's push to make speed a larger part of its value message, especially as Amazon, Target, Instacart, and other delivery players compete for shoppers who want ...