National Agricultural Library

Part of the Agricultural Research Service of the US Department of Agriculture.
http://www.nalusda.gov/

National Library of Education

US federal government's resource center for education information.
http://www.ed.gov/NLE/

National Library of Medicine

US national provider of health-related library and information services.
http://www.nlm.nih.gov/

National Institutes of Health Library

Serving the US National Institutes of Health, with self-service access to others.
http://nihlibrary.nih.gov/

Herbert C. Hoover Building Library

Serving the US Department of Commerce.
http://www.osec.doc.gov/lib/

US National Information Infrastructure Virtual Library

Access to documents and information for the US component of Global Inventory Project (GIP) and the international registry for the G8 Global for Small and Medium-Sized Enterprises (SME) Testbeds.
http://nii.nist.gov/

NIEHS Library

US National Institute of Environmental Health Sciences.
http://library.niehs.nih.gov/

Border Environment Cooperation Commission Library

Supporting the environmental infrastructure information needs of the BECC/COCEF in the Mexico/US border region. Site includes access to BECC library catalogs and online databases, library request services and manuals, links to other resources, and resourc
http://www.cocef.org/Biblioteca/biblioteca4.html

U.S. Department of the Interior Library

Focusing on the natural and social sciences; law; economics; management and use of natural and cultural resources; and the cultures and well-being of American Indians and Native Alaskans.
http://library.doi.gov/

The National Transportation Library

US repository for transportation information.
http://ntl.bts.gov/

LOREG - Local and Regional Government Library

Online library on local and regional democracy in Europe, including national laws and other official documents from European states and the Council of Europe.
http://www.loreg.coe.int/

Canada Instititue for Scientific and Technical Information

Canadian research library for science, technology, engineering, and medicine.
http://cisti-icist.nrc-cnrc.gc.ca/

Energy Library

US Department of Energy. Collections of former Atomic Energy Commission, Energy Research and Development Administration, and Federal Energy Administration.
http://www.administration.doe.gov/admin/library/