IBM: Mobile shopping doubles over holiday

Armonk, N.Y. -- On Tuesday, IBM released its final Benchmark announcement for the 2011 holiday season, detailing a continued strong performance for mobile as well as an overall increase in online spending for December 2011. According to the report, the U.S. online retail sector delivered 7.5% growth in December 2011 compared to the same period last year. This followed a strong November where both Black Friday 2011 and Cyber Monday 2011 delivered double-digit growth over 2010. Other key findings of the IBM report included: Mobile traffic experienced significant growth, as 14.6% of all online sessions on a retailer’s site