E-learning platform with mobile app available. Ebooks and instructional videos in the categories of Data, Hardware, Security, Software Development, System Administration, and Web & Mobile development; plus Business, Career Development, Design, Math, Science, Engineering, and Travel & Hobbies.
Open Access archive, owned and operated by Cornell University, of electronic research articles from the physical sciences, computer science, mathematics, and engineering.
Digital Library portal for research article and data citations, operated by the Harvard Smithsonian Astrophysical Observatory (SAO) under a NASA grant.
Digital platform of the American Institute of Physics (AIP) publications. Search AIP publications and discover news, comment, analysis and research in the Physical Sciences.
Reference source with chemical data and physical property information for inorganic and organic compounds. A good first place to check for commonly needed data, as well as units and conversion factors, and health and safety information.
A wide variety of scholarly e-books.
Science full text journals in all scientific disciplines plus accounting, business, decision sciences, economics, econometrics, energy & power, finance, management, psychology and social sciences. 1997-present.
Citations and some full-text scholarly research articles, books, monographs, reports, statistics online. Multi-disciplinary, 1988-present.
Mathematical Subject Classification for narrowing your search is under ‘Free Tools’. Citations, abstracts, reviews, and some full-text articles from 1800-present.
Citations covering high-impact (heavily cited) journals in the sciences (1900-present), social sciences (1956-present), and arts and humanities (1997-present).