National Science Digital Library

The National Science Digital Library (NSDL), created in 2000 by the National Science Foundation (NSF,) provides organized access to high-quality resources and tools, including NSF-funded projects, NSDL reviewed web sites, and other digital libraries, that support innovations in teaching and learning at all levels of science, technology, engineering, and mathematics education. The NSDL web site allows users to search by grade level and resource format or browse by topic and collection. The site also provides NSDL news; annual reports; blogs; and event calendars for K-12 teachers, higher education faculty and students, and librarians.