When using digital resources, remember to check individual materials in order to see what the copyright and licensing terms are. Some sites, databases, and journals, may contain both open access content and free content - which usually have different reuse and sharing restrictions. Some material may be available to reuse under a Creative Commons license or are in the public domain. Other materials may be free to access, but are not fully open access and will have additional restrictions.
The databases, repositories, and publishers listed below provide full or partial open access to content, available to anyone, no University of Delaware affiliation required. While the library offers informational pages to guide you, access to these resources is open to all. For the most current list, please visit the library's open access databases page.
Open Access. A global, multilingual, public domain database with millions of bibliographic records on agricultural science and technology. Includes links to full-text when available.
Covers technical, economic, and sociological aspects of agriculture, including forestry, animal husbandry, the aquatic sciences and fisheries, and human nutrition.
The literature includes conventional documents, such as articles, books, conference proceedings, etc., but also non-conventional material, such as scientific and technical reports, theses, conference papers, etc., that are not always readily available through normal commercial channels. Non-conventional materials constitute about 20% of the database.
An online gateway to the Library of Congress's vast collection of primary source materials relating to the history and culture of the U.S.
Some collection descriptions include links to images, sound recordings, or other online materials. You can narrow your search results to those that have links to digital content.
Bibliographic resource for the conservation, preservation, and restoration of cultural property.
Cited literature includes:
Open Access. Art history bibliography covering European and American art. Indexes and abstracts art-related books, conference proceedings, dissertations, exhibition and dealer catalogs, and articles from more than 1200 periodicals. (Coverage 1975-2007)
A collection of online resources related to art history, archaeology, art conservation, history, museum studies, intellectual property, and the natural sciences. Resources in the following areas are included:
Founded in 1981, the Daily Observer is Liberia’s best-known, independent, national newspaper. The Daily Observer is notable for its coverage of the modern history of Liberia—including the Liberian Civil War. (Coverage: 1981-2016, in English)
EDGAR is the primary system for companies and others submitting documents under the Securities Act of 1933, the Securities Exchange Act of 1934, the Trust Indenture Act of 1939, and the Investment Company Act of 1940. (Coverage: 1994 --)
Containing millions of company and individual filings, EDGAR benefits investors, corporations, and the U.S. economy overall by increasing the efficiency, transparency, and fairness of the securities markets. The system processes about 3,000 filings per day, serves up 3,000 terabytes of data to the public annually, and accommodates 40,000 new filers per year on average.
Mainly, but not exclusively in English.
Includes materials ranging from Shakespeare and Greek New Testaments to anonymous ballads, broadsides, songs, advertisements, and other ephemera.
From the collections of the British Library and over 2,000 other libraries.
Freely available, comprehensive access to life sciences literature from trusted sources. Contains millions of abstracts and full text articles, including research articles, preprints, micropublications, books, reviews, and protocols. Integrates content from a range of sources such as PubMed, PubMed Central (PMC), Agricola, and 32 life science preprint servers including biorxiv, Research Square, and Preprints.org. When the full text is not available, Europe PMC can provide extended access to full text, with links to legal, free copies via Unpaywall
Europe PMC is hosted by EMBL’s European Bioinformatics Institute (EMBL-EBI), an international, and interdisciplinary research organisation which aims to make the world’s public biological data freely available to the scientific community. Europe PMC is partnered with PubMed Central (PMC), and endorsed and supported by a group of international science funders as their repository of choice.
Contains millions of abstracts and full text articles, including research articles, preprints, micropublications, books, reviews, and protocols. Integrates content from a range of sources such as PubMed, PubMed Central (PMC), Agricola, and 32 life science preprint servers including biorxiv, Research Square, and Preprints.org. When the full text is not available, Europe PMC can provide extended access to full text, with links to legal free copies via Unpaywall.
“My Library” allows you to create a personalized library on Google Books which allows you to label, review, rate, and search a customized selection of books. These collections live online, and are accessible anywhere you can log in to your Google account.
Partial Open Access. Search engine specifically for scholarly publications. You can access the full-text of articles from open access and preprint publications, but you must be logged in to your UDel email account in order to access subscriptions provided by the UD Library.
Google Scholar is only one of many ways to identify and access scholarly publications. Consult the Databases page or the Electronic Journalspage for other possibilities.
Examples of what is available on GovInfo include:
A selective, multidisciplinary bibliography of scholarly works on Latin America. Contains bibliographic records found in the print Handbook of Latin American Studies (HLAS). Includes annotated citations for books, book chapters, articles, conference papers, maps and atlases, and e-resources. Alternates annually between the social sciences and the humanities. (Coverage: 1960s --)
Additional information such as abbreviations, acronyms, subject term glossary, and search tips can be found in the Handbook of Latin American Studies (HLAS): A Resource Guide.
Partial Open Access. Collection of documents, audio and visual resources, and analyses related to homeland security policy and strategy. Supports local, state and federal analysis and decision-making needs, and assists academics of all disciplines in research relating to homeland defense and security. Provides quick access to important U.S. policy documents, presidential directives, and national strategy documents, as well as specialized resources such as theses and research reports from various universities, organizations, and local and state agencies.
Approximately half of the items in the HSDL are openly searchable and available to the public, with no account or authorization necessary. This public collection includes items such as:
Open access newspaper collection spanning the 18th, 19th, and early 20th centuries, up to the 1917 Bolshevik Revolution. Core titles are from Moscow and St. Petersburg but include some regional newspapers. (Coverage: 18th - early 20th centuries, in Russian)
Also includes 2 e-book collections (full-text searchable) of pertinent reference books: an in-depth bibliographic record of all known newspapers published in Imperial Russia (over 10 key bibliographies), and a unique collection of contemporaneous (mostly 19th c.) reference works offering detailed subject bibliographies of the articles appearing in the specific newspapers in the collection.
The only pro-independence newspaper from the period of Kuomintang martial law and press restrictions in Taiwan and Taiwan’s first Chinese-language evening newspaper. Includes coverage of important historical events, including the Zhongli anti-government protest (1977), the Kaohsiung press crackdown and subsequent incidents of state violence (1979), the transition to democracy starting in 1987, and the history of the pro-democracy movement. (Coverage: 1949 - 1987, in Chinese)
Covers Mexico's pre-independence, independence, and revolutionary periods. Includes coverage of Mexican partisan politics, yellow press, political and social satire, and local, regional, national, and international news. (Coverage: 1807-1929)
While holdings of many of the newspapers in this collection are available only in very short runs, the titles are often unique and in many cases represent the only existing record of a newspaper’s short-lived publication.
Digital collection of alternative press newspapers, magazines and journals, drawn from the special collections of participating libraries. These periodicals were produced by feminists, dissident GIs, campus radicals, Native Americans, anti-war activists, Black Power advocates, Hispanics, LGBT activists, the extreme right-wing press, and alternative literary magazines. (Coverage: 20th century, primarily 1960s to the 1980s)
IMF data visualization and statistical tools.
Provides perspective on early 20th-century China, including life, culture, and politics throughout the collapse of the Qing Dynasty, the years of provisional government and civil war, and the birth of the People’s Republic. (Coverage: early 20th c.)
Free open access platform for legal scholarship that integrates collaboration tools, data storage, and sharing of legal scholarship. The archive is composed of working papers, preprints, and fully published papers focusing on legal scholarship.
Law Archive was developed in 2023 and formally launched in 2024 by the Lillian Goldman Law Library at Yale Law School in collaboration with the Center for Open Science, our technology partner. Papers are hosted on the Open Science Framework Preprints server.
A digital library of primary sources on American social history from the antebellum period through reconstruction. Originally a collaborative project between Cornell University and the University of Michigan, each institution focused on different aspects of this period based on what each already had in its collections. Each collection is accessed separately. The Cornell Collection is available at Hathi Trust and the Michigan Collection is available on the U-M Library Digital Collections site. (Coverage: 1840-1900)
Contains 3 Middle English electronic resources: the Middle English Dictionary, a Bibliography of Middle English Prose and Verse, and a Corpus of Middle English Prose and Verse. (Coverage: roughly 1175-1500)
A digital research and teaching collection focusing on the rise of Modernism in the English-speaking world, with a focus on periodical literature.(Coverage: 1890-1922)
Complete run of the conservative newspaper from Puerto Rico. Key topics covered included the industrialization of Puerto Rican society; the Great Depression; territorial relations with the United States including citizenship and activities of independence movements such as the Macheteros and FALN, the rise of the Popular Democratic Party, the Ponce massacre, the Ley de la Mordaza (Gag Law) and more. (Coverage: 1919-1990, in Spanish)
The National Union Catalog of Manuscript Collections (NUCMC) program at the Library of Congress is a free of charge cooperative cataloging program, partnered by the Library and eligible repositories located throughout the U.S. and its territories. It provides and promotes bibliographic access to the nation's documentary heritage.
Marriages, deaths, and obituaries from the Village Record, West Chester, Pennsylvania. Open Access.
Transcriptions of articles, advertisements, and vital statistics provide insight into technology, business activity, and material culture in a milling and manufacturing community at the height of the Industrial Revolution. Open Access .(Coverage: 1850s to 1870s)
Includes material from the following newspapers:
Freely available bibliographic database providing access to worldwide literature on PTSD and other mental health consequences of traumatic events. Includes cross-disciplinary coverage of all publications relevant to PTSD and psychological trauma. (Coverage: 1871 -)
Contains thousands of out-of-copyright historical images, curated by the Public Domain Review (PDR). Includes highlights from galleries, libraries, archives, and museums. Also functions as a database of images featured in the PDR. These featured images each link to an article on the PDR where one can read about the stories which surround the works. Links to the institution where the image was found are also included.
Possible alternative to AP Images (cancelled as of 2025).
Covers 3 major initiatives: restoration of the Union, transformation of Southern society, and enactment of progressive legislation. This collection provides representative pamphlets that highlight these initiatives. (Coverage: 1865-1869, 1877)
Full text of fully searchable newspapers published in Afghanistan, Bangladesh (formerly East Pakistan), India, Nepal, Pakistan, and Sri Lanka. (Coverage: 19th - 20th centuries)
Incorporates a wealth of coverage and perspective on major regional and global events of the late 19th and 20th centuries. Includes newspaper content from Myanmar (formerly Burma), Indonesia, Philippines, Thailand, and Vietnam, and features multiple languages such as Arabic, Dutch, English, French, Javanese, Spanish, and Vietnamese. (Coverage: 1839-1976 with gaps)
129 titles.
In the early 20th century, the Afrikaner nationalist movement threatened to destabilize the delicate political power structure in a country then-known as the Union of South Africa (1910-1961). Die Transvaler was established in 1937 as a newspaper that would promote the cause of Afrikaner nationalism within the Afrikaner-dominated National Party. Die Transvaler was notorious for its racism, antisemitism, and opposition to South Africa’s entry into World War II. (Coverage: 1937 - 1993, in Afrikaans)
Die Transvaler was known for supporting some of the most extreme policies under the apartheid regime—including the Bantu Homeland Citizenship Act of 1970, which established segregated “homelands” for Black South Africans and stripped them of their South African citizenship.
The pinnacle of Die Transvaler‘s influence was in the 1960s and early 1970s, under the governments of Afrikaner nationalists Hendrik Verwoerd (former editor of the paper) and B.J. Vorster. In 1983, the newspaper was relocated to Pretoria and rebranded as an afternoon paper. In 1993, Die Transvaler ceased publication—a year before the apartheid system was officially dismantled.
A digital library that aggregates materials documenting African American history and cultural life from archives, libraries, museums, and other U.S. repositories. It features photographs, manuscripts, documents, books, sound files, video files, and other freely available resources.
Umbra Search is also a widget that can be embedded in any digital environment, allowing users to access Umbra Search from other sites. Widget instructions can be found on the Umbra Search website.
Official source of current and cumulative U.S. export and import statistics. Provides thousand of export and import commodities using the Harmonized System (HS) and North American Industry Classification System (NAICS) codes. To use USA Trade Online you must sign-up for an account.
The databases, repositories, and publishers listed below offer anyone full or partial open access to content. You do not have to be a University of Delaware student, faculty, or staff member to access these resources.
Google Scholar is only one of many ways to identify and access scholarly publications. Consult the Databases page or the Electronic Journalspage for other possibilities.