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You can read faster on good old-fashioned dead-tree paper than you can on iPads, Kindles, or your PC monitor, according to a study by consultancy company Nielsen Norman Group. From PC World:
The study found that reading on an electronic tablet was up to 10.7 percent slower than reading a printed book. Despite the slower reading times, Nielsen found that users preferred reading books on a tablet device compared to the paper book. The PC monitor, meanwhile, was universally hated as a reading platform among all test subjects.
It's a little surprising that people preferred reading books on tablets over paper, considering the weight and eye strain that's still common to a tablet like the iPad, but the difference in rating was marginal. Two steps forward, one step back? [PC World]