Many organisations make their research reports available for general use. Some of the major sources include
Technical reports, bibliographic citations, journal articles, conference papers, books, multimedia, software, and data information sponsored by DOE through a grant, contract, cooperative agreement, or similar type of funding mechanism from the 1940s to the present day.
NTIS: National Technical Information Service
A searchable database of technical reports from U.S. government sponsored research issued since 1990
NTRS: NASA Technical reports Server
Over 840,000 collects scientific and technical information