Online retailers offer free holiday shipping
Christmas is just one week away, and shipping companies are racing to get deliveries done on time. Free shipping day means some retailers will waive the fee on the things you buy, no matter how little you spend. Online sales could hit $105 billion this season. That's a gain of at least six percent over last year. CBS News contributor and NewYorker.com editor Nicholas Thompson joins “CBS This Morning" to discuss retailers' strategy.