- National Library Service for the Blind and Print Disabled - "The National Library Service for the Blind and Print Disabled (NLS) is a free audiobook and braille library service for people with temporary or permanent low vision, blindness, or a physical, perceptual or reading disability that prevents them from using regular print materials. "
- National Technical Reports Library - "The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports."
- Ag Data Commons - "The Ag Data Commons is a research data catalog and repository for public access to data products produced during research funded or co-funded by USDA. The services are provided by the National Agricultural Library."
- FoodData Central - "USDA’s comprehensive source of food composition data with multiple distinct data types."
- National Invasive Species Information Center (NISIC) - "The gateway to invasive species information; covering federal, state, local, and international sources."
- Nutrition.gov - "Nutrition.gov is powered by USDA Science and offers credible information to help you make healthful eating choices."
- USDA National Agricultural Library (NAL) - "The National Agricultural Library (NAL) is one of five national libraries of the United States. It houses one of the world's largest collections devoted to agriculture and its related sciences."
- Food Safety Research Projects Database - "NAL's Food Safety Research Information Office (FSRIO) maintains the Research Projects Database (RPD). The RPD tracks food safety research projects funded by FSRIO partner agencies. The RPD is searchable by Category, Commodity, and Funding Source."
- U.S. Bureau of Labor Statistics - Contains government labor data, such as inflation and prices, pay and benefits, occupational requirements, unemployment, employment, and productivity.
- Occupatonal Outlook Handbook - "The Occupational Outlook Handbook (OOH) provides information on what workers do; the work environment; education, training, and other qualifications; pay; the job outlook; information on state and area data; similar occupations; and sources of additional information for more than 300 occupational profiles covering about 4 out of 5 jobs in the economy."
- Bureau of Justice Statistics (BJS) - "BJS is the primary statistical agency of the Department of Justice."
- Department of Homeland Security (DHS) Publications Library - "The [DHS] Publication Library contains guidance and policy papers, reports, strategies, program regulations, guidelines, brochures and more."
- Department of Homeland Security (DHS) Media Library - The DHS Media Library contains over 33,000 photos, videos, vudios, and graphic files.
- The Homeland Security Digital Library (HSDL) - "The Homeland Security Digital Library (HSDL) is the nation’s premier collection of documents related to homeland security policy, strategy, and organizational management. The HSDL is part of the Naval Postgraduate School Center for Homeland Defense and Security and is sponsored by the U.S. Department of Homeland Security’s National Preparedness Directorate, FEMA."
- National Criminal Justice Reference Service (NCJRS) Virtual Library - "The Virtual Library houses over 235,000 criminal justice resources, including all known OJP works."
- National Institute of Justice (NIJ) Library & Multimedia - NIJ Library & Multimedia offers access to a wide range of resources, including publications, multimedia, the NIJ Journal, databases, datasets, patents, and more. You can find here "a number of free or low cost software tools, apps and databases to assist with investigations or research [funded by the NIJ]."
- ECOTOX Knowledgebase - ECOTOX is a comprehensive Knowledgebase providing single chemical environmental toxicity data on aquatic and terrestrial species.
- Health and Environmental Research Online (HERO) - "Health and Environmental Research Online is a database of scientific studies and other references used to develop EPA's risk assessments aimed at understanding the health and environmental effects of pollutants and chemicals. It is developed and managed in EPA's Office of Applied Science and Environmental Solutions (OASES)."
- National Oceanic and Atmospheric Administration (NOAA) - "NOAA is an agency that enriches life through science. Our reach goes from the surface of the sun to the depths of the ocean floor as we work to keep the public informed of the changing environment around them."
- NOAA Institutional Repository - "The NOAA Repository is a digital library of scientific literature and research produced by the National Oceanic and Atmospheric Administration. Through curated collections researchers can access documents and materials related to specific areas of research. Additionally, full text and other search options make the entirety of the repository accessible to users. This repository is retained indefinitely available to researchers, academics and the general public."
- World Ocean Database (WOD) - "The World Ocean Database (WOD) is world's largest collection of uniformly formatted, quality controlled, publicly available ocean profile data. It is a powerful tool for oceanographic, climatic, and environmental research, and the end result of more than 20 years of coordinated efforts to incorporate data from institutions, agencies, individual researchers, and data recovery initiatives into a single database. WOD data spans from Captain Cook's 1772 voyage to the contemporary Argo period, making it a valuable resource for long term and historical ocean climate analysis. Original versions of the 20,000+ datasets in the WOD are available through the NCEI archives."
- U.S. Fish and Wildlife Service Library - "The FWS Library provides central access to Service digital resources, including collections curated by USFWS staff, topical categories to browse, and resources to aid information discovery."
- U.S. Geological Survey - "USGS began in 1879 to study the nation’s lands and resources. Today, we monitor, analyze, and predict Earth’s changing systems. Our science provides clear, reliable data that protects lives and property, supports energy and mineral decisions, strengthens water infrastructure, and promotes economic growth."
- USGS Publication Warehouse - "The Pubs Warehouse provides access to over 180,000 publications written by USGS scientists over the century-plus history of the bureau."
- USGS Library Photographic Collection - "The Photographic Collection is an archive of more than 500,000 still photographs, slides, glass plate slides, lantern slides, negatives, and sketches dating from the 1870s and taken by USGS scientists as part of their field studies. The images and photographers involved with this collection span a variety of styles, locations, and time periods. Subjects include earthquakes, volcanoes, geologic formations, minerals, historical mining operations, national parks, USGS portraits, and other photographs of historic and earth science events."
- National Center for Biotechnology Information (NCBI) Databases - "The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information."
- CDC Wonder - "CDC WONDER -- Wide-ranging ONline Data for Epidemiologic Research -- an easy-to-use, menu-driven system that makes the information resources of the Centers for Disease Control and Prevention (CDC) available to public health professionals and the public at large. It provides access to a wide array of public health information."
- Science.gov
- NASA - "NASA explores the unknown in air and space, innovates for the benefit of humanity, and inspires the world through discovery." A Spanish site is also available.
- NASA+ - NASA+ is NASA's all new streaming service available now. Explore by topic or series.
- OSTI.gov - "OSTI.GOV is the primary search tool for DOE science, technology, and engineering research and development results and the organizational hub for information about the DOE Office of Scientific and Technical Information."
- Open Net - "The OpenNet database provides easy, timely access to approximately 512,000 bibliographic references and over 130,000 with attached full-text, including information declassified in response to Freedom of Information Act requests. In addition to these documents, OpenNet references older document collections from several DOE sources. This database is updated regularly as more information becomes available."