comScore Reports $50 Billion in Q4 2011 U.S. Retail E-Commerce Spending, Up 14 Percent vs. Year Ago

comScore, Inc. (NASDAQ: SCOR] which showed that online retail spending reached $49.7 billion for the quarter, up 14 percent versus year ago. This growth rate represented the ninth consecutive quarter of positive year-over-year growth and fifth consecutive quarter of double-digit growth rates. For the entire 2011 year, U.S. retail e-commerce spending reached a record $161.5 billion, marking a 13-percent increase from 2010.