Internet Accounts For Significant Share Of Global GDP: McKinsey Quarterly

From McKinsey Quarterly, "Measuring the Net’s growth dividend" May 2011:

The Internet accounts for 3.4 percent of overall GDP in the 13 nations studied. More than half of that impact arises from private consumption, primarily online purchases and advertising. An additional 29 percent flows from investments by private-sector companies in servers, software, and communications equipment. The Internet economy, now larger than that of Spain, surpasses global industry sectors such as agriculture and energy.