As eBay Inc. prepares for a critical holiday shopping season, the company this week plans to unveil new elements of an overhaul in how shoppers find and buy products on its Web site.

Behind the new look, which includes eBay’s first major home-page redesign in nearly four years, is an urgent effort to close a technology gap that has caused the onetime Web pioneer to lag behind rivals like Amazon.com Inc. Amazon for years has had many of the same features that eBay is adding. Get the full story »