The more than 3,500 full-text documents available on this website address the legal, economic, political, diplomatic, and government history of the U.S. Documents are divided into five time periods—pre-18th, 18th, 19th, 20th, and 21st centuries—and include treaties, presidential papers and addresses, and colonial charters, as well as state and federal constitutional and legal documents.

The materials are categorized into 64 document collections as well, such as American Revolution, Federalist Papers, slavery, Native Americans, Confederate States of America, World War II, Cold War, Indochina, Soviet-American diplomacy, and September 11, 2001. By clicking "What's New," the latest digitized documents become available. Material also can be accessed through an alphabetical list of 350 more specific categories, keyword searching, and advanced searching. Most of these documents are directly related to American history, but the site includes some materials on European and modern diplomatic history.

"Densho" means "to pass on to the next generation." In this quest, this website offers an archive of more than 668 oral histories presented in countless hours of video interviews on Japanese American incarceration during World War II. Materials also include approximately 12,000 historical photographs, documents, and newspapers. Visitors to this website should keep in mind that Densho is continually engaged in expanding its resources and adding more interviews, photographs, and documents, so be sure to check back periodically to discover new content!

Access to archival materials requires free registration. Once registered, users may select materials according to 32 topics, including immigration, community, religion and churches, education, race and racism, identity values, resistance, economic losses, redress and reparations, and reflections on the past.

Materials available without registration include lesson plans and information on "Causes of the Incarceration," "Civil Rights and Japanese American Incarceration," "Sites of Shame: Japanese American Detention Facilities," and "In the Shadow of My Country: A Japanese American Artist Remembers." The website also offers 90 multimedia materials providing historical context, a timeline, a glossary, and a list of related sources in print and online.

Images of more than 7,000 advertisements printed primarily in newspapers and magazines in the United States from 1911 to 1955 appear on this well-developed site. The material is drawn from a collection of one of the oldest and largest advertising agencies, the J. Walter Thompson Company.

Advertisements are divided into five main subjects areas: Radio (including radios, radio parts, and programs); television (including television sets and programs); transportation (including airlines, rental cars, buses, trains, and ships); beauty and hygiene (including cosmetics, soaps, and shaving supplies); and World War II (U.S. Government-related, such as V-mail and bond drives). Ads are searchable by keyword, type of illustration, and special features. A timeline from 1915 to 1955 provides general context. "About Ad Access" furnishes an overview of advertising history, as well as a bibliography and list of advertising repositories.