Twenty-seven iconic images in American history are presented here, designed specifically to encourage educators to use images as primary source documents in the classroom. The images range in time from 17th-century depictions of the Catholic mission in San Antonio to the contemporary art of Washington, DC native Martin Puryear.

Also included are the Lansdowne portrait of George Washington, "Washington Crossing the Delaware," and Hiram Powers's statue of Benjamin Franklin, as well as works by artists such as Grant Wood, George Catlin, Winslow Homer, John Singer Sargent, Mary Cassatt, and Edward Hopper, and by photographers Walker Evans and Dorothea Lange. All images are accompanied by a brief annotation providing historical context, a biography of the artist, and a list of online resources offering further contextual information, lesson plans, and classroom activities. Images enlarge to fullscreen and are searchable by artist and by theme: Leadership, Freedom & Equality, Democracy, Courage, Landscapes, and Creativity & Ingenuity.

The National Archives and Records Administration holds more than 10 billion items addressing the social, economic, political, and cultural history of the U.S. This interactive website makes more than 1,200 of those items available, including official documents, personal accounts, images, maps, and ephemera. Browsing is easy from the main page which presents a rotating cast of eight archival items—from an early engraving of the Declaration of Independence, to a top secret document on dropping the atomic bomb, to an image of Navajo code talkers.

More than 550 tags and a keyword search render the items accessible to those interested in specific topics, such as "Abraham Lincoln" (20 items), NASA (19 items), and "Yellowstone National Park" (three items). Each item is accompanied by a brief annotation providing historical context and related tags, further facilitating browsing. All items can be zoomed for highly detailed viewing and rendered printer-friendly for classrooms without computer access.

The website also provides a variety of tools allowing users to collect and manipulate items. "Create" presents the opportunity to make individualized posters and movies out of any item or group of items from the website. After a free login, users can save and email these creations for future use.

These more than 200 documents explore cultural connections between the experiences of African Americans and Irish immigrants in America. Materials relate to individual leaders, historical events, economic, political, and social factors, and cultural achievements. A section entitled "Making Connections" offers 15 questions about historical events and people that represent the intertwined histories of Africans and Irish in America.

Other topics include the end of English participation in the slave trade, the emergence of the nativist Know-Nothing Party in the 1850s, and Ku Klux Klan activities against Catholics and blacks after the Civil War. A section on "Acceptance" explores perceptions of individual and group identities and four timelines focus on displacement, oppression, discrimination, and acceptance in America. "Voices" provides a sample of 13 public statements and interviews on ethnicity and race from ordinary modern Americans. The site also provides a bibliography; an essay by writer James McGowan, a black American with an Irish paternal grandfather; and links to related websites.

All 42 of the nation's completed presidencies are profiled in detail on this website geared towards teaching the history of the American Presidency. In-depth biographies include information on childhood, education, career, elections, family life, domestic policy, and foreign affairs. Many biographies include links to numerous primary sources—speeches, writings, letters, and diplomatic documents—and to lesson plans. As a companion website to the PBS American Experience documentaries, these resources are hooked into a larger "Archives" section available at the top of the screen. Here, users will find thousands of resources, including maps, movies, and QuickTime Virtual Reality, on many topics in American history divided by theme and chronology, such as technology, popular culture, war, and urban and rural environments.

Created by two history professors, this site was designed to provide "a resource and a model for teachers of U.S. women's history." It currently offers 45 mini-monographs, each comprised of a background essay and relevant primary source documents, organized around an analytical question concerning a social movement. Projects are organized into five subject categories: peace and international; politics and public life; sexuality, reproduction, and women's health; work and production; and race and gender. The site includes more than 1,050 documents and 400 photographs. Keyword searching, links to more than 400 sites, and more than 24 lesson plans are also provided. The site has expanded to include thousands of new documents starting in 1600 in a joint project with Alexander Street Press. The joint site requires subscription.

This massive website furnishes several large collections. The Oral History Project presents full transcriptions of more than 475 audio oral histories conducted with U.S. men and women who served in Vietnam. The Virtual Vietnam Archive offers more than 408,000 pages from over 270,000 documents regarding the Vietnam War in addition to a number of video interviews.

The site focuses on military and diplomatic history, but aims to record the experiences of ordinary individuals involved in Vietnam and on the home front. Additional items address Thailand, Laos, and Cambodia, as well as Americans and Vietnamese. Secondary and reference resources are also available, including conferences papers, and video versions of a 1996 address by former ambassador William Colby on "Turning Points in the Vietnam War."

Forty-four "full-life" interviews with American women journalists are available on this website. Interviewees include women who began their careers in the 1920s through the present. Print, radio, and television journalism all are represented.

Interviews address difficulties women have encountered entering the profession and how their presence has changed the field. They also discuss political life, famous people interviewed, such as Eleanor Roosevelt, and social, ethical, and technological changes of the 20th century.

A preface and an explanation of methodology introduce the site. Each interview is linked to a photograph and brief biographical sketch of the interviewee. Interviews range from one to 12 sessions and each session is about 20 pages long. Interviews are indexed but not searchable.

More than 55,000 photographs taken by staff photographers of the Chicago Daily News during the first decades of the 20th century are available on this website. Roughly 20 percent of the photos were published in the paper. The Chicago Daily News was an afternoon paper, sold at a cost of one cent for many years, with stories that tried to appeal to the city's large working-class audience.

The website provides subject access to the photographs, which include street scenes, buildings, prominent people, labor violence, political campaigns and conventions, criminals, ethnic groups, workers, children, actors, and disasters. Many photographs of athletes and political leaders are also featured. While most of the images were taken in Chicago and nearby areas, some were taken elsewhere, including at presidential inaugurations. The images provide a glimpse into varied aspects of urban life and document the use of photography by the press during early 20th century.

In 1939, John Lomax, Curator of the Library of Congress Archive of American Folk Song, and his wife Ruby Terrill Lomax, embarked on a 6,500-mile journey through the South. During their travels, they recorded more than 700 folk tunes that now are available as audio files on this website. Genres include ballads, blues, children's songs, cowboy songs, fiddle tunes, field hollers, lullabies, play-party songs, spirituals, and work songs.

The site also presents field notes containing personal information on some of the more than 300 performers the Lomaxes recorded, notes on geography and culture, and excerpts from correspondence. More than 50 letters to and from the Lomaxes, 380 photographs, a bibliography of 22 works, and a map are also offered. The site is keyword searchable and can be browsed by subject as well as title, song text, and performer.

This exhibit collects a series of chronologies, images, maps, bibliographies, biographies, essays, and other materials for studying the Spanish-American War. An overview essay discusses the historical context, including events leading up to the war and well-known individuals such as Jose Martí and Theodore Roosevelt.

There are four main sections: Cuba, the Philippines, Puerto Rico, and Spain. Each section presents an introductory essay, a chronology, and guides to related resources. An index offers short descriptive entries on 57 people, 13 places in Puerto Rico, Cuba, and the Philippines, and 21 events. Also available are a chronology and a selected bibliography of personal narratives, illustration sources, manuscripts, and maps. Finally, there is a list of additional Library of Congress resources and relevant American Memory presentations.