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Publisher of the reports of the National Academies of Sciences, Engineering, and Medicine, operating under a charter granted by the Congress of the United States. Currently provides more than 8,500 titles in PDF format.

Tutorial from Boston University addressing the practice of producing graphics representations of scientific phenomena.

Free and open source software for numerical computation, providing a powerful computing environment for engineering and scientific applications.

An interdisciplinary body of the International Council for Science, WDS's mission is to support ICSU’s vision by promoting long-term stewardship of, and universal and equitable access to, quality-assured scientific data and data services, products, and information across a range of disciplines in the natural and social sciences and the humanities.