Pew Internet & American Life Project
The percentage of U.S. adults who own e-readers such as the Kindle or Nook doubled to 12 percent in May from only 6 percent in November, according to a new survey from the Pew Internet & American Life Project. The rate of growth surpassed tablet computers (such as the iPad, Xoom and Galaxy), which grew to 8 percent, up only 3 points in the same time period. Three percent of adults owned both types of devices. The survey also includes demographic data about device owners.