Four guided investigations designed to teach students how to read primary sources and construct historical narratives lie at the heart of this website. Topics are: the Spanish-American War, the Scopes Trial, Social Security, and Rosa Parks. Each topic includes a short introductory video, a timeline of events, a central question, and extension activities. For example, the Rosa Parks investigation poses the question: "Why did the boycott of Montgomery's buses succeed?"

After completing a simple login, students read annotated documents—including letters written by the boycott organizers, a speech by Martin Luther King, Jr. and an interview with a woman working in Montgomery—and answer guiding questions, and draw on their responses to answer the question. The website also includes a useful introduction to the idea of historical thinking.

Provides informative entries on more than 4,000 works of art—more than 500 of which include images—in the collection of the Hirshhorn Museum and Sculpture Garden in Washington, D.C. "Conceived of as the nation's museum of modern and contemporary art," the Hirshhorn concentrates on the post-World War II period, with special focus on the past 25 years, though it also owns works by influential modern artists from earlier periods. Searchable according to artist, title, date, nationality, and 30 schools of art. Entries provide short essays of up to 200 words on artists and works. Previous and current exhibits are on display. An "Art Interactive" component explains ways that recent sculptors have used various methods and materials, and invites visitors to design their own creations. Useful for those seeking an introduction to modern and contemporary art history.

This website offers an archive of nearly 2,000 pieces of sheet music printed during the First World War (1914-1918). The collection includes such diverse subjects as African-American soldiers, democracy, flags, marriage, and Woodrow Wilson, and it includes the work of such musicians as Irving Berlin, Eddie Cantor, and John Philip Sousa. The collection can be browsed by creator, publisher, subject, or titles; and both basic and advanced searches are available. A general introduction and a historical essay are forthcoming. This website is a useful resource for historians of early 20th-century American culture or those studying material or visual culture.