According to the latest research from the Pew Internet & American Life Project, about half of all Americans now own a dedicated handheld device -- "either a tablet computer like an iPad, or an e-reader such as a Kindle or Nook, for reading e-content. That figure has grown from 43 percent of adults who had either of those devices in September."

Half of Americans own a tablet or e-reader

Among the other Pew research findings:

E-book readers who own tablets or e-readers are very likely to read e-books on those devices—but those who own computers or cell phones sometimes turn to those platforms, too. And as tablet and e-reader ownership levels have risen over the past few years, these devices have become more prominent in the e-reading landscape:

As tablet ownership grows, more use them for e-books