An extensive site covering the history of NASA's aeronautical and space programs. Materials include photographs, flight communications transcripts, essays, timelines and chronologies, policy documents, biographies, and much more. "Aeronautics" includes flight research centers, flight research projects (such as the lifting body program and the X-1 that first broke the sound barrier), and the X-15 project. "Biographies" includes all present and former astronauts. "Human spaceflight" offers extensive material, including essays, technical information, and other material on the Mercury, Gemini, Apollo, Skylab, Apollo-Soyuz Test Project, and Space Shuttle projects. The Apollo Program includes the Apollo Lunar Surface Journal, an extensive site that provides corrected transcripts of recorded conversations between lunar surface crews and mission control with commentary from the site editor and 10 of the astronauts who walked on the moon. The same is available for Apollo 12, 15, and 16 Flight Journals. Reference material includes more than 50 historical policy documents including NASA's 1959 Long Range Plan and the 1986 Report of the Presidential Commission on the Space Shuttle Challenger Accident. There are more than 30 timelines and chronologies.

The photo and video section has video clips from the Apollo missions including lunar surface exploration. The massive Johnson Space Center Digital Image Collection has a searchable database of more than 9,000 NASA press release photos from the manned space program (Project Mercury to the Space Shuttle). "Space science" includes descriptive information and technical data on all planetary exploration projects from Mariner and Pioneer to Voyager and Galileo, as well as the lunar probe series Ranger and Surveyor. "NASA History for Kids" includes more than 25 links to sites for elementary and middle school students' research. With a wealth of both primary source material and secondary source information this site is an outstanding resource for teaching or researching the history of aeronautics and astronautics and the history of U.S. science and technology in the 20th century.

This extensive archive assembles some 16,000 historical and biographical articles preserved in scrapbooks at the Wisconsin Historical Society in the late 19th and 20th centuries. The primary focus of the collection is the people and communities of Wisconsin. Most of the articles were published between 1860 and 1940 in hundreds of local Wisconsin newspapers. Together the articles contain more than 50,000 pages, all of which are available in the archive. Articles are displayed as page images, but transcripts are not provided. Visitors can search the collection by keyword or search by dropdown menus of counties, newspapers, or topics. Topics include agriculture, architecture, education, government and politics, Indians and Native Peoples, industry, and transportation. Full-text searching of the articles is not possible. An excellent resource for researching the social, cultural, and political history of Wisconsin and its people.

This extensive archive offers more than 10,300 photographs of Florida folklife from the 1930s through 2001. The archive can be browsed or searched by keyword. The site also makes available 17 interviews with folklorists and folk artists and 24 recordings of performances by Florida blues, gospel, shape-note, and folk singers. Additionally there are also 10 "voices of Florida" collections that include recordings of performances by or interviews with folk musicians, crafters, storytellers, and folklife interpreters on subjects such as children's lore, religious traditions, Seminole culture, maritime traditions, ethnic folk culture, material culture, and occupational lore. There are also 29 brief profiles of prominent Florida folklorists.

For teachers, the site offers five educational units that offer a history section with an interview, documents and audio, photographs, and lesson plans. Unit subjects include Zora Neale Hurston's 1939 recording expedition to the turpentine camps in Cross City, the history and practices of the net-making trade, the tradition of white oak basket making, and Seminole doll making. The visitor can also search the full catalog of photos and audio recordings (46,000 photographs and 5,000 audio recordings). Also available are five film clips from early Florida Folk Festivals and the Florida Folk Arts Conference. And the website provides 30 links to related websites on folklife programs and collections.

This small archive provides more than 850 images from the mid-18th century to the present of the Santa Clara Valley in California. Browse the archive or view images through six thematic groupings: agriculture (91 images); education (147 images); people (467 images); technology (182 items); transportation (125 items); and urban life (78 items). There is some overlap between the collections. Keyword and advanced searches are also available. There are seven lesson plans on the history of the Santa Clara Valley, primarily for high school. Topics include the 1906 earthquake, the history of technology, urban development, the Ohlone Indians, women in Santa Clara County, and transportation.

This archive and virtual museum offers papers, photographs, and oral histories on the U.S. Securities and Exchange Commission (SEC) and its role in U.S. and international markets from 1929 to the present. There are 742 papers, reports, letters, notes, memoranda, transcripts of Congressional subcommittee hearings, and other documents organized chronologically by decade. Also available are 761 photographs arranged alphabetically. These include portraits, group photos, and photos of important events in the history of the SEC. There are edited transcripts and audio recordings of 33 oral history interviews and seven SEC roundtable discussions (some include essays and video). An interactive timeline allows visitors to explore important events in the history of the SEC.

A galleries section combines text and images in narratives exploring themes or important periods in the SEC's history. Each includes an introductory essay by the exhibit curator and primary materials, including papers, images or video clips, and oral histories. There are edited transcripts and audio of 21 original programs broadcast from the site as well as links to 38 related websites. Search is limited to keyword searches across the entire site. This site provides useful resources for studying the history of business and is an excellent starting point for those interested in the history of the SEC or those studying the history of business, businesspeople, or corporations

This combined archive and exhibit contains more than 100,000 images, including photographs, broadsides, posters, maps, advertisements, and other documents. There is a keyword search but no feature for browsing the entire collection. Many of the images can be browsed, however, through nine "galleries," or thematic collections of selected images. "Scenic Rails of the West" is a large exhibit with seven image galleries that include towns, touring, railroads, native culture, and national parks. The "Photos West Classics" gallery is also large and includes the most frequently requested images. Topics include children, saloons, trails and covered wagons, famous Westerners, famous Native Americans, Wild West shows, and Western life. Other galleries include "Railroads," "Building Histories," and "Native American Women." All images are accompanied by a descriptive catalog record and are available for purchase. A learning page (accessed through "news") offers 18 lessons. This website is a valuable source of images on Western figures, culture, environment, politics, and economic development. Teachers of the American West will also find valuable instructional resources.

This archive brings together more than 1,300 images on a wide array of topics related to Chicago, its people, and its culture. The material in the collection spans both the 19th and 20th centuries and includes photographs, advertisements, broadsides, maps, letters, newspaper articles, illustrations, and engravings. The photographs include aerial views of the Chicago cityscape, Chicago places, Chicago industries and workers performing their trades, historic photographs, Chicago events, and photographs of Chicago's people. The more than 100 maps can be browsed separately. Each item is cross-referenced to related items in the collection and many of the images are accompanied by explanatory text. The images can be enlarged and there are features for rotation and magnification.

Additionally, the site offers interpretive essays on the Plan of Chicago of 1909, "one of the most noted documents in the history of city planning" and the importance of water in Chicago's history. Other special features are a biographical dictionary, a dictionary of leading Chicago businesses from 1820-2000, and a presentation on how Chicagoans remember their history with images and brief interpretations. In addition, the entire contents of Encyclopedia of Chicago can be searched. A useful resource on the history of Chicago or urban history.

This website allows visitors to explore the history of Wisconsin through essays, primary source documents, lesson plans, and maps. The main feature is 53 presentations grouped under 10 overall topics: early native peoples; early explorers, traders, and settlers; territory to statehood; immigration and settlement; Civil War era; mining, lumber, and agriculture; Progressive Era; 20th-century wars and conflicts; prosperity, depression, industrialization, and urbanization; and response to 20th-century change. Each topic offers four or more presentations with a short introductory essay; primary sources available on the site; primary sources available elsewhere; and related links.

Documents available on the site include more than 140 books, tracts, pamphlets, or papers; more than 100 images; more than 260 articles; and more than 35 manuscripts. The site also offers 95 reference maps. There are more than 45 elementary and 36 secondary lesson plans searchable by keyword, grade level, and/or topic. The advanced search allows visitors to search by fields such as agriculture, intellectual life, and politics; or by keyword, education level, topic, presentation, or type of document. Additionally, there is a tutorial on using primary documents. This website is a good starting point for teaching or researching Wisconsin or the mid-Western region.

This website examines gold mining in Georgia's Lumpkin County from the late 1830s through the early 1940s with 90 primary sources, including letters, memoranda, photographs, picture postcards, and selected legal, financial, and promotional documents, including company prospectuses. The main concentration is the period between Reconstruction and the turn of the 20th century. Subjects include account collection, companies, leases, machinery, mineral rights, operations and techniques, and ore handling. An essay on Georgia gold mining history with links to primary documents discusses the Georgia Gold Rush, the "Great Intrusion" and Cherokee Removal, the U.S. branch mint in Dahlonega, gold mining in Georgia during the second half of the 19th century, the Second Georgia Gold Rush, 20th-century gold mining activity, and gold tourism. "Players and Places" provides brief descriptions of the people and places involved. "Suggested Readings" lists 38 related books, articles, and web essays as well as 14 mining company prospectuses and reports available at various archives and libraries. There is also a list of related archival collections.

This site allows the visitor to search and view Minnesota's original public land survey plats created by the U.S. Surveyor General's Office during the years 1848 to 1907 and the later General Land Office and Bureau of Land Management maps of the state. The collection includes more than 3,500 original land survey maps; an 1873 map book of Hennepin County; late-19th-century plat books of Dakota, Hennepin, Ramsey, and Winona counties; and an 1871 illustrated historical atlas of Minnesota. Browse all the maps and plats or search the collection by county, township/range, or keyword. The advanced search feature allows the researcher to search the collection by title, subject, description, creator, publisher, date, source, or coverage. A useful resource for those researching the social, economic, environmental, or political history of Minnesota and its counties and towns.