The shift began years ago, and all data points to trends continuing…online sales continue to outperform total retail. In 2010, US retail ecommerce sales (excluding travel) rebounded from the recession, posting 14.8% growth, compared with only 1.6% growth in 2009. In 2011, online sales will reach $188 billion, although growth will moderate to 13.7%, resuming a prerecession trend of slower …