NEW YORK (AP) — A study finds that 12 percent of U.S. households now own a reading device for electronic books, such as Amazon's Kindle.
That's three times the number of households that owned an e-reader just a year ago, pointing to rapid acceptance.
The phone survey was conducted in April and May by the Pew Internet and American Life Project.
Prices for e-readers have fallen rapidly over the past year. Barnes & Noble's Nook is growing as a competitor to the Kindle. The cheapest models are now available for just above $100.
The survey also found that ownership of tablet computers such the iPad has doubled over the past year to 8 percent of households.
The survey had a margin of error of plus or minus 2 percentage points.