comScore estimates U.S. retail e-commerce sales rose 14% Y/Y in Q2 to $37.5B. By contrast,...

|By:, SA News Editor

comScore estimates U.S. retail e-commerce sales rose 14% Y/Y in Q2 to $37.5B. By contrast, Amazon.com's (AMZN) North American sales grew 51% Y/Y in Q2 to $5.4B. These numbers demonstrate both the extent of Amazon's market share gains, and how much share is left for the company to take in a market that isn't done growing.