Pew Internet and American Life Project: “Fully 85% of American adults use the internet or cell phones – and most use both. Many also have broadband connections, digital cameras and video game systems. Yet the proportion of adults who exploit the connectivity, the capacity for self expression, and the interactivity of modern information technology is a modest 8%.”

See also two charts from Business Week’s look at Web Strategies That Cater To Customers which track demographics on the use of social media and online tool and applications: