The Central Intelligence Agency (CIA) has digitized thousands of formerly secret documents declassified to comply with Freedom of Information Act requests.

Keyword search capabilities are provided for the complete site. In addition, there are eight collections designated as "frequently requested records" that total nearly 8,000 documents. These collections cover a number of Cold War topics: CIA involvement in the 1954 coup in Guatemala; convicted spies Ethel and Julius Rosenberg; the 1961 Bay of Pigs affair; and two well-known espionage incidents.

Additional topics include POW MIAs in Vietnam, human rights abuses in Latin America, and UFOs. A disclaimer notes that some material cannot be disclosed due to national security laws, and released pages often have material deleted or blacked out. Still, the material offered is voluminous and useful for studying Cold War foreign policy and military history.

This website presents historical sources and teaching materials that address notions of childhood and the experiences of children and youth throughout history and around the world. Primary sources can be found in a database of 200 annotated primary sources, including objects, photographs and paintings, quantitative evidence, and texts, as well as through 50 website reviews covering all regions of the world. More than 20 reviews and more than 70 primary sources relate to North American history.

The website also includes 20 teaching case studies written by experienced educators that model strategies for using primary sources to teach the history of childhood and youth, as well as 10 teaching modules that provide historical context, strategies for teaching with sets of roughly 10 primary sources, and a lesson plan and document-based question. These teaching resources cover topics ranging from the transatlantic slave trade, to girlhood as portrayed in the novel Little Women, to children and human rights. Eight case studies relate to North American history, as do two teaching modules.

The website also includes a useful introductory essay outlining major themes in the history of childhood and youth and addressing the use of primary sources for understanding this history.

A comprehensive gateway to more than 3,000 links that provide historical maps and information about the history of cartography, with an emphasis on early maps. Searchable by an index with more than 400 alphabetically-arranged subject terms or by keyword. Includes sites offering listings for conferences, discussion lists, fellowships, map societies, journals, images of early maps, map collecting, web projects on early cartography, histories of maps, and articles on cartography. Now incorporated into the World Wide Web–Virtual Library and updated weekly. Extremely useful as a starting point for online cartographic resources.