The Information Bridge: DOE Scientific and Technical Information provides free public access to over 259,000 full-text documents and bibliographic citations of Department of Energy (DOE) research report literature.
The National Technical Information Service serves as the largest central resource for government-funded scientific, technical, engineering, and business related information available today.
TRAIL-Technical Report Archive and Image Library: a collaborative project to digitize, archive, and provide persistent and unrestricted access to federal technical reports issued prior to 1975.