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U.S. shoppers spent $9.4 billion online on Cyber Monday — up almost 20% from a year ago and a record — boosting an already robust holiday shopping season.

Walmart Inc. is weighing the future of JetBlack, a pet project of its online chief that was the first business to emerge from its internal incubation arm.

Amazon.com Inc. is designating products sold by certain companies as “top brands,” a test that if widely implemented could ease tension between the online retail giant and big-name companies used to favorable positioning at brick-and-mortar retailers.

FedEx Corp.’s retreat from handling packages for Amazon.com Inc. signals that the lines are being drawn in the battle over surging e-commerce shipments.

Shopify Inc. shares continued their rally Aug. 1 after the Canadian e-commerce company reported second-quarter sales that beat analysts’ average estimate and gave a more optimistic full-year outlook.

A trade association representing wholesale distributors is pressuring lawmakers not to approve increased government spending on a highly lucrative e-commerce contract the group says favors Amazon.com.

Same-day shipping is becoming more common for online shoppers, but for smaller merchants it can be a logistical nightmare. That’s where Shopify Inc. can step in, says Ric Kostick, CEO of 100% PURE.

Kroger has unleashed a flurry of initiatives to ensure it won’t get thumped in a post-Amazon-buying-Whole-Foods world, but its biggest gamble is a partnership with British online grocer Ocado Group to build as many as 20 automated grocery warehouses in the United States.

Internet searches for “Canceling Amazon Prime” were 18 times higher June 15 — the beginning of Amazon.com’s two-day sale — than the previous day, according to search engine monitoring firm Captify, suggesting shoppers did not want to make a long-term commitment to the giant online retailer.