- Core Documents of U.S. Democracy
- The GPO (Government Printing Office) has some unique items online such as the Articles of Confederation and the Gettysburg Address. Also included are the Proclamations and Executive Orders of Presidents from 1945-1989, the Declaration of Independence, the Constitution, and the Bill of Rights.
- A Century of Lawmaking for a New Nation: U.S. Congressional Documents and Debates - 1774-1873
- This site contains the Journals of the Continental Congress, the Statutes at Large, the House and Senate Journal, the Annals of Congress, the Register of Debates, the Congressional Globe, and much more.
- Historical Documents
- From the Library of Congress, American Memory Historical Collections. The documents included are Early Congressional Documents, the Declaration of Independence, the Federalist Papers, and the Constitution of the United States.
- Documents in Law, History and Diplomacy
- The Avalon Project at the Yale Law School breaks documents down into the categories of Ancient Documents (4000 B.C.E.-399 C.E.), Medieval Documents, and 15th through 21st Century Documents. Can search by Author, Subject, or Title. It also has the common names of Diplomatic Documents.
- Words and Deeds in American History - Selected Documents Celebrating the Manuscript Division's First 100 Years
- From the Library of Congress. Search by keyword or browse by name, subject, or time period.
- Public Papers of the Presidents of the United States
- From the Government Printing Office. May browse the 1991-1992 papers of George H.W. Bush, the complete papers of William J. Clinton, and the 2001-2005 papers of George W. Bush. To search, go to the advanced search page, type your search, and add the title "Public Papers" to the Selected Collections box.
- Public Papers of the Presidents - The American Presidency Project
- From the University of California, Santa Barbara. Has text of public papers from Herbert Hoover to George W. Bush (1929-1993). Can search by keyword or browse year and/or month.
- Presidential Audio/Video Archive - The American Presidency Project
- From the University of California, Santa Barbara. Has selected addresses, remarks, etc. from Herbert Hoover to George W. Bush.
- Declassified Government Documents
- From University of Texas at Austin. Some sites listed include full text of certain declassified government documents.
- Declassified/Released Document Collections - Department of State
- Limited number of collections ranging from Amelia Earhart to the 2006 Mexican Presidential Election.
- National Security Archive
- An independent non-governmental research institute and library located at The George Washington University, the Archive collects and publishes declassified documents obtained through the Freedom of Information Act. Has Electronic Briefing Books on subjects such as Europe and Nuclear History. The Special Exhibits listed on the NSA home page include The Cuban Missile Crisis, 1962 and Nixon Meets Elvis.
- CIA Electronic Reading Room
- You may search all the available declassified documents from the main page. Or browse a list of the top 25 Frequently Requested Records such as the Bay of Pigs or the NIC (National Intelligence Council) Vietnam Collection. You may also browse the Special Collections Archive or the 25 Year Program Archive. Since some of the documents are not in one of the collections, you may find some items only by searching.
- Historical Advertising - Ad*Access
- The Ad*Access Project, funded by the Duke Endowment "Library 2000" Fund, presents images and database information for over 7,000 advertisements printed in U.S. and Canadian newspapers and magazines between 1911 and 1955.
- American Memory: Historical Collections for the National Digital Library
- May search terms or browse collections by topic, time period, format, or place. Includes sound recordings, videos, photographs, books, maps, and sheet music.
- Center of Military History
- This site by the U.S. Army contains historical publications, artwork, and photographs.
- Texas Treasures
- This site features images of artifacts and historic documents held by the Texas State Library and Archives Commission. Includes the Texas Declaration of Independence, Travis' Letter from the Alamo, and voting results for annexation.
- Narrative History of Texas Annexation
- This summary also includes links to relevant documents such as the 1845 Joint Resolution for Annexing Texas to the United States.
- Narrative History of Texas Secession and Readmission to the Union
- Has summary and links to relevant documents such as the 1861 Ordinance of Secession.
- The Handbook of Texas Online
- This online version of The Handbook of Texas by the Texas State Historical Association is an excellent multi-disciplinary encyclopedia of Texas history, geography, and culture. It has more than 25,000 articles on people, places, events, historical themes, institutions, and many other topics.
- Texas Historical Commission
- The Texas Historical Commission (THC) is the state agency for historic preservation. THC staff works with citizens and organizations to preserve Texas' architectural, archaeological, and cultural landmarks. The site includes an archive of The Medallion magazine and Rules and Regulations about preservation.
- State Department - Office of the Historian
- The Historian's Office publishes the official documentary history of U.S. foreign policy in the Foreign Relations of the United States (FRUS) series. Volumes of the FRUS covering 1945-1976 may be searched or browsed. The site has overviews of key milestones in U.S. history. The department history includes information such as lists of which countries a president visited and for what purpose.
- Department of Energy - History
- Has a DOE timeline and a list of history publications. The interactive history of the Manhattan Project is of special interest. Field site history pages have photo galleries.
- EPA History Office
- The History Office contains EPA historical publications and numerous historic press releases on topics such as pollution prevention and natural disasters.
- NASA's History Office
- The NASA History Program was first established in 1959 (a year after NASA itself was formed) to document and preserve the agency's remarkable history.
- NOAA History
- The NOAA (National Oceanic & Atmospheric Administration) History site contains a photo library, films, biographic sketches of historical employees, personal war accounts, and background on NOAA's ancestor agencies.
- U.S. Department of Transportation History
- Includes a brief history of the DOT, biographical sketches of the Secretaries of Transportation, and a chronology of dates significant to the origins and history of the department.
- FEC Mission and History
- This site describes the Federal Election Commission's Federal Election Campaign Act laws and history.