Robert Darnton, author of books, articles, and Carl H. Pforzheimer University Professor and Director of the University Library at Harvard. Darnton joins host Jonathan Judaken to discuss the future of libraries, the printed press, and his project - the Digital Public Library of America, or D.P.L.A. - which he hopes will foster a culture of "Open Access" to help promote the free communication of knowledge and sharing of intellectual wealth in order to create this "digital commonwealth.