Perseus Digital Library
(Tufts University / free access) Contains a variety of primary sources related to the study of ancient Greece and Rome.
American Originals
(National Archives / free access) A collection of primary sources related to US History provided by the National Archives.
Internet History Sourcebooks Project
(Fordham University / free access) The Internet History Sourcebooks Project is a collection of public-domain and copy-permitted historical texts presented cleanly for educational use.
Foreign Service Journal Archive
(Foreign Service Association / free access) The Foreign Service Journal covers foreign affairs from an insider’s perspective, providing thought-provoking articles on international issues, the practice of diplomacy, and the US Foreign Service.
AMDOCS: Documents for the Study of American History
(University of Kansas / free access) The University of Kansas has compiled a wide array of primary sources related to American history from the 800s to the present, including maps, letters, speeches, legal documents, and more.
Library of Congress Digital Collections
(Library of Congress / free access) The Library of Congress offers free access to a wide variety of primary sources related to US history.