Some obligatory stats:

• US e-commerce sales will grow 62% by 2016, to USD 327 billion (Source: Forrester, February 2012).
• European e-commerce sales will grow by 78% by 2016, to USD 230 billion (Source: Forrester, February 2012).
• Brazilian e-commerce sales will grow 21.9% in 2012 to USD 18.7 billion (Source: eMarketer, January 2012).
• Chinese e-commerce sales were CNY 780 billion (USD 124 billion) in 2011, an increase of 66% from 2010. E-commerce is expected to rise from 3% of consumption to 7% by 2015 (Source: IDC, March 2012).
• India’s e-commerce market is expected to grow to USD 70 billion by 2020, from just USD 600 million in 2011 (Source: Technopak Advisors, February 2012).
• Indonesian e-commerce sales are forecast to grow from USD 120 million in 2010 to USD 650 million by 2015 (Source: Frost & Sullivan, February 2012).