Extract from site:

“The vision of a national digital library has been circulating among librarians, scholars, educators, and private industry representatives since the early 1990s, but it has not yet materialized. Efforts led by a range of organizations, including the Library of Congress, HathiTrust, and the Internet Archive, have successfully built resources that provide books, images, historical records, and audiovisual materials to anyone with Internet access. Many universities, public libraries, and other public-spirited organizations have digitized materials that could be brought together under the frame of the DPLA, but these digital collections often exist in silos. Compounding this problem are disparate technical standards, disorganized and incomplete metadata, and a host of legal issues. No project has yet succeeded in bringing these different viewpoints, experiences, and collections together with leading technical experts and the best of private industry to find solutions to these complex challenges. Users have neither coherent access to these materials nor tools to use them in new and exciting ways, and institutions have no clear blueprint for creating a shared infrastructure to serve the public good. The time is right to launch an ambitious project to realize the great promise of the Internet for the advancement of sharing information and of using technology to enable new knowledge and discoveries in the United States.”

Further Reading:

Building a Digital Public Library of America

The Digital Public Library of America Concept Note http://dp.la/files/2012/04/DPLA-concept-note-032812-draft-to-SC-1.pdf