GrayLIT Network is is no longer available as of October 31, 2007.
Fulltext technical reports of Federal Agencies of ‘gray’ literature. Now use Science.gov or the Osti.gov to search across collections of the U.S. Department of Energy’s (DOE’s) scientific and technical information. To duplicate the former GrayLit search, use Science.gov and limit to the following databases: DTIC, DOE, EPA and NASA. You can also perform separate searches in the databases below.
Defense Technical Information Center (DTIC) Technical Reports
This full-text collection provides access to unclassified, unlimited documents. It is a growing subset of over 500,000 reports referenced and available in STINET, which dates back to 1974. Subject areas consist of those associated with defense research and basic sciences including biological and medical sciences; environmental pollution and control; behavioral and social sciences; and patents and patent applications.
DOE Information Bridge Report Collection
This site performs full-text searching across over 85,000 reports and over 4.3 million pages. Bibliographic citations are also available. Subject areas include physics, chemistry, materials, biology, environmental sciences, energy technologies, engineering, computer and information science, renewable energy, and other topics. Full text is available for reports from 1995 forward.
EPA – National Environmental Publications Internet Site (NEPIS)
This site offers an increasing number of archival and current EPA documents online. Subject areas include water quality, wastewater, pesticides, ecological issues, wetlands, and many more environmental-related areas. With over 10,000 documents, NEPIS is EPA’s largest electronic documents site.
NASA Jet Propulsion Lab (JPL) Open Repository
JPL’s Technical Report Server is a database of searchable citations and abstracts and downloadable full-text technical reports covering propulsion, deep space developments, and robotic missions. Currently, there over 18,172 technical reports online which are available in Portable Document Format (PDF).
NASA Langley Technical Report
This database provides access to publicly available online NASA documents covering aeronautical and space science. Technical reports on this system are in PDF, HTML, or compressed PostScript format. There are over 4,424 full-text reports that are downloadable with searchable citations and abstracts.