Harvard Releases Big Data for Books - The New York Times

"Harvard is making public the information on more than 12 million books, videos, audio recordings, images, manuscripts, maps, and more things inside its 73 libraries....Harvard is hoping other libraries allow access to the metadata on their volumes, which could be the start of a large and unique repository of intellectual information....The metadata will be available for bulk download both from Harvard and from the Digital Public Library of America, which is an effort to create a national public library online."