By Iris Dorbian. Over ten years ago, e-commerce was still an emerging channel. Now it’s become a worldwide phenomenon racking up sales in the stratosphere. According to a new report by the market research firm Forrester, online retail sales in the U.S. are poised to tap $327 billion by 2016. Furthermore, overall online consumer spending is expected to increase to $1,738 per person by 2016 in contrast to $1,207 per person in 2011. For 2012, the forecast is for $226 billion, a 12 percent jump...