A Chronology of U,S. Historical Documents - Univ. of Oklahoma
From the Pre-Colonial Era to the present, this website contains full-text of some important documents like the Magna Carta and the current State of the Union Address.

Early Recognized Treaties with American Indian Nations - Univ. of Nebraska
Texts of treaties made between American Indian tribes and the United States government, from 1722 to 1805.

Core Documents of U.S. Democracy – GPO Access
Core group of current and historical government publications such as the Articles of Confederation, the Bill of Rights, the Declaration of Independence, and more.

Library of Congress
The nation's oldest federal cultural institution, and research arm of Congress.
- American Memory
Gateway to rich primary source materials on the history and culture of the U.S.
- A Century of Lawmaking for a New Nation
U.S. Congressional Documents and Debates from 1774-1873.
- Today in History
Read summaries of major historical events for each day.

The National Archives (NARA)
NARA is an independent federal agency that preserves the nation's history and oversees the management of all federal records.  A few important links are:
- Archival Research Catalog
- The Charters of Freedom
- Presidential Libraries and Museums
- Picturing the Century - One hundred years of photography from the National Archives.

Smithsonian
- National Museum of American History
- Smithsonian Institution Archives
- Smithsonian Institution Libraries

Historical Government Documents on the Web
A comprehensive list of links to historical information available on the Web.

Historical Media Databases (GODORT)
A list of databases produced by states or their political subdivisions that provide online access to historical photographs, video, or audio.  Currently this page features databases from Alaska, Arizona, California, Colorado, Florida, Georgia, Kentucky, Minnesota, Ohio, Oregon, Pennsylvania, Texas, and Utah.