This fact sheet from the Information Technology and Innovation Foundation lists 53 documented economic benefits of IT, from jobs and output to competitiveness and innovation. More at: http://www.itif.org/
Between 2001 and 2011, over 565,000 IT-related jobs (in all industries) were created in the United States, an increase of 22.2 percent. IT jobs grew more than 95 times faster than employment as a whole, which grew by only 0.2 percent. In 2011, IT workers earned $78,584 a year, 74 percent more than the average worker ($45,230).