BASE: Bielefeld Academic Search Engine one of the best and most comprehensive tools for locating open-access books, journals, dissertations, and other scholarly sources available worldwide.
Websites
American Mathematical Society: Information for Students
MAA Online Classroom Capsules and Notes
Mathematical Association of America
MathVids.com (Free Math Videos)
Mathematic Sciences in 2025 (National Academies Press)
Digital Libraries
MetaLib, a service of the Catalog of U.S. Government Publications
(53 government databases, subject gavetways, digital repositories and e-journals)
National Science Digital Library
OAIster More than 19 million digital resources from over 1,000 organizations developed by the University of Michigan.
Project Euclid Open access journals to promote scholarly communication in theoretical and applied mathematics and statistics.
Science Portal (U.S. Government)
WorldWideScience.org is a global science gateway comprised of national and international scientific databases and portals.
Numerical Weather Prediction (NWP) models translate the physical laws by which the atmosphere operates into an interrelated web of mathematical equations. Credit: (Map courtesy NOAA/NESDIS)