A new study from market research firm Harris Interactive found that 8 percent of Americans use an e-reader and an additional 12 percent plan to purchase an e-reader within the next six months. The study also found that consumers that own e-readers read more and purchase more books than those that do not own e-readers. The study notes, "Overall, two in five Americans (40%) read 11 or more books a year with one in five reading 21 or more books in a year (19%). But among those who have an e-reader, over one-third read 11-20 books a year (36%) and over one-quarter read 21 or more books in an average year (26%)."
Additional results from the study can be found here.