Govinfo.gov provides free public access to official publications from all three branches of the Federal Government. Legislative, executive, and judicial content includes bills, statutes, congressional committee materials, proceedings of Congress, presidential and regulatory materials, opinions from U.S. courts, along with curated collections and digitized historical content.
Gale eBooks is a collection of authoritative ebooks, encyclopedias, and specialized reference sources for multidisciplinary research. Individual titles may be searched by logging into the database and then narrowing to a specific title.
Established by the American Geosciences Institute, GeoRef provides access to the most comprehensive geoscience literature of the world. It includes references to all publications of the U.S. Geological Survey. Master's theses and doctoral dissertations from US and Canadian universities are included. Coverage for North American resources starts in 1669, and worldwide coverage in 1933.