Erik Brynjolfsson is a Professor at the MIT Sloan School of Management, Director of the MIT Center for Digital Business, Chair of the MIT Sloan Management Review, and the Editor of the Information Systems Network. His research and teaching focuses on how businesses can effectively use information technology in general and the Internet in particular. His books include Race Against the Machine: How the Digital Revolution is Accelerating Innovation, Driving Productivity, and Irreversibly Transforming Employment and the Economy and The Second Machine Age: Work, Progress, and Prosperity in a Time of Brilliant Technologies, both co-authored with Andrew McAfee.