EghtesadOnline: The world’s largest online retailer on Wednesday announced Amazon Key, a lock and camera system that users control remotely to let delivery associates slip goods into their houses. Customers can create temporary passcodes for friends and other services professionals to enter as well.

EghtesadOnline: When Wal-Mart Stores Inc bought online retailer Jet.com for $3 billion last year, it marked a crucial moment - the world's largest brick-and-mortar retailer, after years of ceding e-commerce leadership to arch rival Amazon, intended to compete.

EghtesadOnline: Amazon.com Inc.’s lending business is accelerating, highlighting one more way the online retailer is making money from e-commerce beyond simply selling products in its web store.