The Digital Public Library of America (DPLA) serves as a portal to the digital collections of more then 40 state, regional, and online-only libraries, museums, archives, and other cultural institutions. Created to strengthen access to public resources and to "create novel environments for learning, tools for discovery, and engaging apps," the DPLA is an invaluable first stop for teachers and students looking for primary sources, particularly regional history sources.

Visitors to the website can search the more than 4,500,000 objects in the collections of participating institutions using keywords, returning results they can filter by format, owning institution, partner, date, language, location, and subject. Clicking on an object brings up detailed metadata, including creator, date of creation, and a description of the object, as well as a link to its original location online. Visitors who create a free account can save their search results, make them private or public, and share them via Facebook, Twitter, or Google+.

Visitors can also browse objects on a map or timeline—a fantastic way to prompt thinking about how primary sources are located in time and space. The timeline stretches from 1000 BCE to the present. (Note that zooming into the map returns finer results.) In addition, more than eight virtual exhibits demonstrate how DPLA sources can be curated to tell stories about themes and events.

The DPLA's API (application programming interface) allows visitors with the know-how to create apps drawing on the DPLA's collections. An eclectic set of more than 10 apps lets visitors browse DPLA's search results as a "river of images," discover primary sources related to their Zotero bibliographies, and more.

A fantastic starting point for anyone looking for primary sources, teachers can feel confident pointing students towards the DPLA to begin research projects or turning to the DPLA themselves to find resources to support lesson plans.

This site is dedicated to the history and continuing development of Native American technology and arts. It is designed and maintained by Tara Prindle, an archeologist on the Program and Events Committee of the Nipmuc Indian Association of Connecticut. A 500-word historical essay and five to ten illustrated descriptions of techniques introduce each of the 12 sections, including beadwork, stonework and tools, pottery, poetry, and food. A section on beadwork presents seven photos of 18th-century beadwork alongside six technical drawings. For five different kinds of beadwork, from bone to glass, the site provides between ten and 100 illustrations of beads. A section on wigwams contains nine pages of writings about wigwams from the 17th century as well as a photographic guide to building your own wigwam. Special features include more than 50 links to sites about Ojibwe language, history, art, and culture and a collection of illustrated essays (400-1,500 words) about Seminole men's clothing. Links to 58 sites about contemporary issues in Native American art, such as counterfeiting, and more than 100 Native American clubs and message boards. A useful site for research in Native American cultural and material history.

The Yale Digital Commons provides access to sources from the Yale Center for British Art, Yale Peabody Museum of Natural History, Yale University Art Gallery, Yale University Library, and Yale University on iTunes U.

Getting acquainted with the commons can be somewhat daunting. Arrival on the homepage simply offers a keyword search with only a slight indication of the extent or content types of the collections you can search. The description states the contents include "art, natural history, books, and maps, as well as photos, audio, and video documenting people, places, and events that form part of Yale's institutional identity and contribution to scholarship."

The best way to proceed is to select Advanced Search. From here, you can limit a search to items available online. You can also pick one or more of the aforementioned institutions to search within, or choose specific collections which range from African Art or American Decorative Arts to Vertebrate Zoology or Yale University.

Sources you can find using this system include apparel; architectural elements; arms and armor; books, coins, and medals; calligraphy; containers; drawings and watercolors; flatware; fossils; furniture; hardware; inscriptions; lighting devices; jewelry; manuscripts and documents; masks; minerals; miniatures; models; mosaics; musical instruments; packaging; paintings; photographs; plant and animal remains; print templates; scientific instruments; stained glass; textiles; tools and equipment; timepieces; toys and games; sculpture; and wallpaper.

An archaeological exploration of a farmhouse built in early 18th-century Brooklyn that allows visitors to participate in a "virtual dig" to examine artifacts and documents relating to the lives of a Dutch family and their descendants. Chronicles the work done by Brooklyn College archaeologists and students, who have turned up evidence of slave rituals that originated in Africa and the existence of a secret garret room believed to have been used to hide slaves as part of the Underground Railroad in the 1840s. Provides family documents, including wills, probates, and deeds; oral histories of family members (including one audio file); old family recipes; field notes; student journals; an analysis of animal remains; a lesson in stratigraphy (study of rock strata); and approximately 30 photographs. Valuable for those studying family history and the use of material culture in determining ways of life in earlier periods of time. Links to The Lott House Restoration Project, which provides a tour of the house and additional information about the Lott family.

This website offers more than 50,000 slides and photographs that document the history of the American period in Micronesia from 1947 to 1988. The image collection can be browsed or the visitor can sample the types of images in the collection through 12 short animated image tours. The topics of the image tours give an idea of the variety of images available in the collection: parades, dancing, voting, agriculture, stone money, canoes, architecture, women, leaders, education and children, health and hospitals, and men. The only search capability on the site is a Google search of the photograph description files. Additional resources include a map of Oceania and a link to the Hawaii War Records Archive. This archive is a useful source of images for those researching, writing, or teaching the cultural history of the Pacific Islands.

Visitors to this site are invited to explore historical aspects of the roughly 200 National Park Service locations designated important to U.S. history and prehistory. Materials are organized by "cultural resource subjects," including archeology, architecture and engineers, cultural groups, cultural landscapes, historic buildings, mapping, maritime and military history, and "cultural resource programs," such as the American Indian Liaison Program and Heritage Preservation Services.

Visitors can search for information on more than 2.5 million Civil War soldiers and sailors; more than 71,000 properties listed in the National Register of Historic Places; and approximately 240,000 reports on federal archaeological projects in the National Archaeological Database. National Register Travel Itineraries provide historic guides to 18 cities and communities. The National Underground Railroad Network to Freedom contains information on 51 sites of importance and on slavery and antislavery efforts.

Also of interest are bibliographies on the African American west and public history, and full-text publications on the Antiquities Act of 1906 and the promotion of the city of Seattle during the gold rush era. The homepage—"History and Culture"—presents several topical, comprehensive historical exhibits including the "Eisenhower Virtual Museum."

Offers material from and about "this most famous 19th-century women's magazine," a monthly that provided middle- and upper-class American women with fiction, fashion, illustrations, and editorials from 1830 through its demise in 1898. Includes three full-text issues from 1855 and a partial issue from 1852. Each page is available in medium and high resolution formats. In addition, the site contains three complete short stories; 10 synopses (200 words each) of other stories published in the magazine; 26 full-page color illustrations of scenes of domestic life; nine partial-page illustrations; 104 fashion-oriented illustrations; six examples of sheet music that appeared on a regular basis in the magazine; three architectural drawings; and three sample editorials by Sarah J. Hale, a long-time editor. Material about the magazine includes a 900-word publication history; a 1,600-word essay on publisher Louis A. Godey's column; 500-800-word biographical essays on Godey and Hale; and links to three other sites. Of interest to those studying mid-19th-century middle-class American life, women's history, print culture, fashion, domestic life, and popular literature.

A photo archive of more than 29,000 images, produced by architectural photographers Samuel Gottscho and William Schleisner. Gottscho and Schleisner were commissioned to document the work of architects, sculptors, and artists for individuals and institutional clients, such as House Beautiful and House and Garden magazines. The collection specializes in views taken primarily in the northeastern United States--many in the New York City area--and in Florida. Subjects include homes, stores, offices, factories, and historic buildings. Also of note are 100 color images of the 1939-1940 New York World's Fair. As the introductory text points out, the assembled group of photographs can "serve as a document of social change from a particular vantage point of the middle and upper classes of society."

A searchable database of approximately 1,000 historical images from 14 collections at Duke University, focusing mainly on cities and towns in the American South from the late 19th century to the 1980s. Includes 41 aerial views taken by the U.S. Army Signal Corps in 1918 of towns in Florida, Georgia, Alabama, and South Carolina; 150 picture postcards of southern towns from the turn of the century to the 1960s; 22 photos of the 1886 earthquake in Charlotte, SC; 32 photographs taken in Savannah, GA around the turn of the century; 28 taken in Cheraw, SC, in the early 20th century; 112 shot in Durham, NC, from the turn of the century up to 1950; and 66 photos, taken mostly in Durham, for 18 Duke University undergraduate documentary photography projects created between 1979 and 1985. The site also includes a series of 97 photographs taken in Salem, MA, in the 1890s; 31 images from the Philippine Islands and other Far East locations taken between 1899 and 1902; and four series of 218 photographs by documentarist William Gedney taken in New York, San Francisco, and Benares, India. Especially of value for students of urban architecture and for those interested in images of southern street life.

Homepage for Mt. Vernon Estate and Gardens, George Washington's Virginia estate, this site offers valuable sources for researching the life and home of the first U.S. President. An exhibit contains more than 50 images of furniture, art, documents, and other Mount Vernon household objects. Each image is accompanied by a 150-word description of the artifact and its location or significance to the estate. A virtual tour of Mt. Vernon's mansion takes visitors through every room with a photograph and 350-word description of the room and its furnishings. An archaeology section describes digs at eight sites on the estate, a 500-word description of a current excavation of Washington's distillery, and a 1500-word essay on the Mt. Vernon mansion's restoration beginning in 1858. An Educational Resources section offers a fifth-grade lesson plan, complete with trivia about Washington, excerpts from his Rules on Civility, and anecdotes from his military career and presidency; a 2000-word essay on Washington's attitude toward slavery and information on his slaves' lives, including links to a facsimile copy of Washington's 1798 slave census and 18 images of paintings and artifacts depicting the everyday lives of Mt. Vernon's slaves. This site is ideal for researching Washington's life and home, and it could also be useful for those studying material culture and archaeology.