IEEE/IEE Electronic Library (IEL)IEEE/IET Electronic Library (IEL) includes access to the full text of IEEE content published since 1988 with select content published since 1893 from:
IEEE journals, transactions, and magazines, including early access documents, conference proceedings,journals, IET conference proceedings, published standards, Standards Dictionary Online.
Virtual Technical Reports Center, University of Maryland"The Virtual Technical Reports Center  is a listing of institutions that provide either full-text reports, or searchable extended abstracts of their technical reports on the World Wide Web.  This site contains links to technical reports, preprints, reprints, dissertations, theses, and research reports of all kinds.  Some metasites are  listed by subject categories, as well as by institution.  As of January 1, 2013, this content will be available, but the links will no longer be updated."
NTIS - National Technical Information Service"The National Technical Information Service serves as the largest central resource for government-funded scientific, technical, engineering, and business related information available today. For more than 60 years NTIS has assured businesses, universities, and the public timely access to approximately 3 million publications covering over 350 subject areas"
Science.Gov" is a gateway to government science information and research results. Currently in its fifth generation, provides a search of over 55 scientific databases and 200 million pages of science information with just one query, and is a gateway to over 2100 scientific Websites (see fact sheet)."
Science Accelerator"Science Accelerator is a gateway to science, including R&D results, project descriptions, accomplishments, and more, via resources from the Office of Scientific and Technical Information (OSTI), U.S. Department of Energy.
It was developed to advance discovery and to deliver science information. The resources let you explore significant DOE discoveries, learn about DOE Nobel Prize Winners, access and search scientific e-prints, locate science conference papers and proceedings, and more."
TRAIL-Technical Report Archive and Image Library"The Technical Report Archive & Image Library (TRAIL) is an initiative led by the University of Arizona in collaboration with CRL and other interested agencies to identify, digitize, archive, and provide access to federal technical reports issued prior to 1975. The TRAIL project began under the auspices of the Greater Western Library Alliance  (GWLA).  AllGWLA members provided support in the early years of the TRAIL project."
Defense Technical Information Center (DTIC)The Defense Technical Information Center (DTIC®) serves the DoD community as the largest central resource for DoD and government-funded scientific, technical, engineering, and business related information available today .
Environmental Protection Agency (EPA) - NEPISMore than 7,000 in-stock and 24,000 digital titles are available to search and retrieve, download, print and/or order from the EPA's National Service Center for Environmental Publications.
Los Alamos National Laboratory Research LibraryThe Research Library holds over 3 million unclassified technical reports, in print, microfiche and electronic formats. We are an archival resource for Los Alamos reports, with all formal LA reports since 1943 and many informal LA-URs. Use the databases below, or contact the library by email or phone 667-5809. We have more reports than are shown in the Library Catalog, and access to other resources.
National Transportation LibraryTransportation Library (NTL) is a repository of U.S. DOT transportation information, serves as a portal transportation data, and provides library services to U.S. DOT employees. NTL’s mission is to maintain and facilitate access to statistical and other information needed for transportation decision-making at the Federal, State, and local levels and to coordinate with public and private transportation libraries and information providers to improve information sharing among the transportation community.
Fire Research Information Services (FRIS)The Research Information Service, formerly known as the Fire Research Information Service (FRIS), is located at the National Institute of Standards and Technology (NIST) . It is an information resource center and library available to NIST staff, fire protection engineers, scientists, and fire service personnel around the world. The 80,000 document collection represents a vast resource of information on building and fire research related subjects.
International Atomic Energy Agency INIS DatabaseThe International Nuclear Information System (INIS) hosts one of the world's largest collections of published information on the peaceful uses of nuclear science and technology. It offers online access to a unique collection of non-conventional literature. INIS is operated by the IAEA in collaboration with over 150 members.