The Murphy and Bolanz Company, a Dallas real estate firm established in 1876 that was the official mapmaker for the City of Dallas, produced a set of maps that are detailed and rare. This site, made possible by a grant from the Texas State Library and Archives Commission, is an online version of the Murphy and Bolanz maps, a nine-volume collection of approximately 3,500 maps. Although currently only three of the volumes are available through the site, all nine will eventually be digitized. The voluminous collection consists of details of each block in Dallas and some of the surrounding suburban towns, including original maps of most towns and communities in Dallas County from the 1880s to the 1920s. These maps contain layouts for neighborhoods, the name, and date of original property owners, as well as sites of early schoolhouses, streetcar lines, businesses, and parks. Users will find African-American, Jewish, and Catholic cemeteries depicted on the maps and the sites of early Dallas businesses, such as Neiman Marcus, Sanger Brothers, and Adolphus Hotel.

The site is searchable by index or by street name, personal name, building name, railroad, or geographic feature. This unique online collection holds enormous research potential for historians and genealogists, but also for preservationists who will value the abundance of architectural and structural information and for legal researchers who will find the early property ownership details indispensable. The maps are also a great resource for geography teachers and students.

Between 1850 and 1950, the population of New York City grew from just under 700,000 to more than seven million. This collection of 1,300 photographs documents the manifold changes that characterized New York City's urban environment in this 100 year period. The photographs are gathered from several collections: 1896 street views by Staten Island photographer Alice Austen, 1911 panoramas of Fifth Avenue, Washington Irving's home in the 1860s, 31 photo-lithographics of mid-1800s Hudson River mansions, the Sperr collection of 335 photographs taken between 1931 and 1942, and a general collection of photographs divided by city borough. Highlights include Austen's images of New York City laborers (organ grinders, bootblacks, police men, messenger boys) and of her home life among the State Island elite—both rare subjects for this period, and the Sperr collection's documentation of the construction of the Belt Parkway. Part of the New York Public Library's renowned digital library collection, this website is essential for those interested in U.S. urban history, architecture, the history of New York City, and the built environment.

An exhibition of 18 works by one of America's great artists, Thomas Eakins (1844-1916), with annotations of 100-300 words on each image. Eakins, known for applying Paris-learned Beaux-Arts techniques to realistic depictions of his own Philadelphia milieu, often painted persons engrossed in everyday actions: sailboats racing and oarsmen rowing on the Schuykill River; surgeons overseeing students operating on patients; a concert singer performing; a baby playing; and coach horses trotting through Fairmont Park. Although most of the images —which date from 1871-1902—are reproductions of paintings, the exhibit also includes a preparatory drawing, a photograph of the artist's anatomical casts, and two photographic studies, one influenced by the pioneer motion studies of Eadweard Muybridge. As the exhibition text notes, scholars have recently discovered that Eakins used projected photographs to create his works.

Also included are expressive portraits of Eakins' friends and contemporaries, including poet Walt Whitman, who wrote that Eakins was "not a painter, but a force"; controversial anthropologist Frank Hamilton Cushing; and sculptor William Rush engaged in transforming a nude model into a mythic image. Valuable for students of the history of art and for those interested in realistic depictions of late 19th-century life and culture in Philadelphia.

Currently provides more than 122 images of objects, documents, and photographs pertaining to the history of the town of Worthington, OH, founded in 1803 by a group of families migrating from western Connecticut and Massachusetts. The site creators plan to add more materials in the future, including digitized versions of 19th- and 20th-century newspapers and oral histories. Users may search by subject, title, or keyword in bibliographic records—which include abstracts of up to 100 words for each item—or browse the collection by decade or 27 categories covering aspects of the social, economic, cultural, civic, and environmental history of the town. Includes links to 22 related sites. Useful for those studying local history.

Presents 470 audio excerpts of interviews and 3,882 photographs compiled in 1994 by the American Folklife Center of the Library of Congress during a study of occupational culture in Paterson, NJ. The project—sponsored by Congress—explores ways that the industrial heritage of Paterson, with manufacturing roots going back to the 18th century, still affects present-day community life and culture with regard to work practices and leisure activities. Audio files are available in three formats, accompanied by bibliographic records with word-searchable summaries and subject headings. The site includes five essays—from 2,500 to 5,000 words in length with photographs—by project fieldworkers on African American family businesses in Paterson; an ethnography of a single workplace—Watson Machine International, a manufacturing film established in 1845; business life along a single street—21st Avenue, home to Italian and Hispanic communities; a traditional Paterson food—the hot Texas wiener; and remembrances by retired workers.

Offers a 27-title bibliography, annotated links to 32 related sites, and a glossary of specialized terms. Valuable for those studying the intersection of labor and ethnic history, urban history, and the functioning of historical memory.

Presents histories of two secretive U.S. intelligence organizations—the National Reconnaissance Office (NRO) and the National Security Agency (NSA)—and documents the use of satellite imagery in U.S. intelligence operations. Material is organized into three electronic briefing books. The site includes 23 documents from 1961 to 1996 on the creation of the NRO—established in 1961 to coordinate U.S. reconnaissance efforts; 24 documents from 1950 to 2000 on the NSA, created to manage and control U.S. communications intelligence activities; and 14 satellite photographs with a 4,400-word essay on the history of U.S. satellite imagery from 1960 to 1999. The NSA briefing book offers President Truman's 1952 memo establishing the agency and additional documents concerning topics such as North Vietnam military strategy, India's atomic energy program, the global surveillance network known as Echelon, and concerns about possible infringement by the agency of privacy rights of U.S. citizens. Satellite photographs show sites in the Soviet Union, the Sudan, Iraq, Serbia, and Afghanistan.

Includes links to information on three microfiche sets of related documents and three books on the history of U.S. intelligence operations by the site's creator, Jeffrey T. Richelson. Valuable for those studying the effects of technological developments on the history of U.S. espionage activities and international relations during and after the Cold War.

Presents more than 600 drawings by Kiowa Indians—a tribe originally from the Southern Plains—from the 19th and 20th centuries. While many are on traditional buffalo hide, more recent drawings are on paper. These drawings illustrate "tribal social and artistic traditions" as well as the history of contact and conflict. The first of five sections includes 45 drawings created by Kiowa, Cheyenne, and Arapahoe warriors imprisoned in the 1870s. The largest section offers more than 400 images commissioned by anthropologist James Mooney in the late 19th century as illustrations for his field notes. Additional sections include the Silver Horn pictorial calendar, composed of images used to track time and illustrate stories, and Silver Horn Target Record Book, with images of "warfare, courting, personal dress, the Sun Dance, and stories of the mythical trickster figure, Saynday." The final section offers material by the "Kiowa Five," artists who studied at the University of Oklahoma in the late 1920s and helped establish contemporary Indian painting. Useful for those studying American Indian history, culture, life, and art.

Approximately 75 items that tell the story of pioneering African American flyers, their contributions to the World War II effort, and racial discrimination they suffered. The site is arranged into four sections containing narratives of approximately 350 words each with hyperlinks leading to related images, mostly photographs. The exhibit also includes reproductions of posters, newspaper articles, insignias, advertisements, personal accounts, government documents, and letters. Searchable by keyword, decade, exhibit section, media, or name of plane. The reproduction quality of some of the items is poor; several newspaper articles are so blurred they are virtually unreadable.

Includes two lesson plans for grades 5-12, links to nine related sites, and an 11-title bibliography. The site will provide students with a brief introduction to an often neglected aspect of African American and aviation history.

Provides nearly 12,300 documents pertaining to Nobel Prize-winning geneticist and microbiologist Joshua Lederberg (b. 1925), acclaimed for his work in molecular biology and the genetics of bacteria. Most of the material dates from 1945 to the present. Includes more than 10,300 pieces of correspondence, more than 550 articles, 19 lab notebooks, 228 newspaper columns, 48 speeches, 55 monographs, 28 essays, 32 official reports, 83 photographs, and 9 video clips. An exhibit orients visitors to Lederberg's important work in bacterial and cellular genetics, artificial intelligence and expert systems, exobiology ("the study of life outside the atmosphere"), emerging infectious disease and biological warfare (Lederberg was a critic of biological warfare research), and health and the future. The site is fully searchable. Valuable for those studying the history of science and social policy.

Provides historical information and photographs pertaining to more than 300 surveying instruments used in America to delimit land and transport boundaries "since the first European colonists settled here some 400 years ago and turned the American landscape into property." Visitors may browse by 23 types of instruments—from alidades to zenith telescopes—and by 117 names of instrument makers. Informative texts on makers, types of instruments, and specific instruments run from one sentence to 300 words in length. Entries include bibliographic references. Of value for those studying the history of science and technology.