Ebook reading is up, but it’s shifting from dedicated e-readers to tablets. That’s the word from the latest Pew Research Center’s Internet & American Life Project survey, which found that ebook reading in the last year rose to 23 percent of all Americans ages 16 and older, compared to 16 percent a year ago. The big beneficiary of this ebook reading increase appears to be tablets, which have overtaken e-reader ownership for the first time in Pew’s surveys. While ownership of e-readers has grown to 19 percent from 10 percent a year ago, tablet ownership is now up to 25 percent, up from 10 percent a year ago. Overall, one-third (33 percent) of Americans now own an e-reading device, either e-reader or tablet, compared to 18 percent of Americans a year ago.