• Biology Browser
• Science.gov
• National Institute of Standards and Technology
• US Patent and Trademark database
• SAO/NASA databases
• National Biological Information Infrastructure databases
• USGS database
• DOE Information Bridge
• Energy Citations Database
• National Service Center for Environmental Publications
• National Technical Information Service database
• National Science Digital Library
• National Center for Biotechnology Information

Smithsonian Museum Collection Records
Research collections of the National Museum of Natural History are available to the public via a standard web interface for the following seven museum collection units: Department of Anthropology, Department of Botany, Department of Invertebrate Zoology, and Department of Vertebrate Zoology Divisions of Fishes, Amphibians and Reptiles, Birds, and Mammals.

Human Protein Atlas
The human protein atlas shows expression and localization of proteins in a large variety of normal human tissues, cancer cells and cell lines with the aid of immunohistochemistry (IHC) images.