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ATSDR Toxicological Profiles
Peer-reviewed Tox Profiles each provide a comprehensive and extensive evaluation, summary, and interpretation of available toxicological and epidemiological information on a substance.
Google Patent Search
Allows you to search for U.S. patents back to 1790.
Integrated Taxonomic Information System
Provides authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.
Provides standardized information about the vascular plants, mosses, liverworts, hornworts, and lichens of the U.S. and its territories.
Provides comprehensive access to authoritative U.S. government science information including research and development results.
Portal to free, publicly-available Department of Energy sponsored R&D results. Includes access to technical reports, bibliographic citations, journal articles, conference papers, books, multimedia and data information.
National Science Foundation Twitter Feed