U.S. shoppers seeking to avoid the holiday crowds at bricks-and-mortar stores and snare deals on Cyber Monday came face-to-face with traffic jams and product sellouts, with some customers of Target Corp forced to wait in a virtual line. Sales on Cyber Monday, traditionally the busiest day of the year for Internet shopping, were up 14 percent from a year earlier at $490 million between midnight and 10 a.m. ET, according to Adobe Digital Index, part of Adobe Systems Inc, which provides digital marketing and media solutions to merchants.