Digital Public Library of Virginia: An all-digital library that links to millions of photographs, manuscripts, books, sounds, moving images, and more from libraries, archives, and museums around the United States.
Docs Teach: Online tool for teaching with documents from the National Archives.
Smithsonian Learning Lab: Digital resources from across the Smithsonian’s 19 museums, 9 major research centers, and the National Zoo.
OER Commons: Open educational resources (OER) are teaching, learning, and research resources that reside in the public domain or have been released under an intellectual property license that permits their free use and re-purposing by others. OER include full courses, course materials, modules, textbooks, streaming videos, tests, software, and any other tools, materials, or techniques used to support access to knowledge