Total Black Friday revenue may have fallen, but online sales jumped 20.7%, IBM estimates. That...

|By:, SA News Editor

Total Black Friday revenue may have fallen, but online sales jumped 20.7%, IBM estimates. That followed an increase of 17.4% on Thanksgiving day. Shoppers are increasingly using their mobile devices to compare prices, with 24% of consumers accessing a retailer's site with a phone or tablet vs 14.3% last year.