DPLA can be searched by time or place, browsed through a virtual bookshelf or by curated exhibits, and also is a platform to be built upon through apps and widgets.
The Digital Public Library of America is a free, online library that provides access to millions of books, photographs, maps and audiovisual materials and more from libraries, museums and archives across the United States. The video below offers a brief introduction.
The DPLA is "fed" by hubs - state and regional digital libraries, as well as large digital libraries around the U.S. Some of the content hubs are below, with all of the current partners listed here.