Online sales hit a new record of $6.59 billion on Cyber Monday -- a 17 percent increase from the $5.6 billion in last year's sales for the day -- making it the largest online shopping day in history, based on Adobe Analytics data released Tuesday. Mobile shopping also broke records, starting with the channel's first-ever $2 billion sales day. Smartphone shopping reached new heights, accounting for almost 38 percent of e-commerce visits and more than 21 percent of revenue.