A new machine at the University of Michigan Shapiro Library turns downloaded digitized books into bound, printed copies which you can buy and take home with you. Mainly for out-of-print or copyright-expired books, here is a synopsis: "With the installation of a state-of-the-art book-printing machine at one of its libraries, the University of Michigan stands at the new frontier of 21st-century publishing, offering printed and bound reprints of out-of-copyright books from its digitized collection of nearly 2 million books, as well as thousands of books from the Open Content Alliance and other digital sources." You can find out more from the U of M video.