Recently I wrote about a short new electronic book by Tyler Cowen, The Great Stagnation, which discussed technology and the economy.
I am now reading another ebook, Race Against the Machine: How the Digital Revolution is Accelerating Innovation, Driving Productivity and Irresistibly Transforming Employment and the Economy. The topic is something else RAW wrote about, how technology affects employment.
Tyler includes it in his list of the best economic books of the year ("Second best eBook of the year," presumably behind Tyler's own.) More here.