EnergyFiles searches more than five hundred databases and Web sites containing information and resources pertaining to science and technology of interest to the Department of Energy, with an emphasis on the physical sciences.
The United States Department of Commerce National Technical Information Service (NTIS) serves as the largest central resource for government-funded scientific, technical, engineering, and business related information available today. Included are citations for more than 3 million publications in more than 350 subject areas.
NCBI (National Center for Biotechnology Information) is a cross-database search engine for approximately 24 life science databases. Some of the subjects covered include: gene sequences, molecular structure, proteins, and nucleotides.