A database provided by the Chemical Abstracts Service (CAS), full of chemical and bibliographic information that covers many scientific and biomedical fields, with an emphasis on chemistry.

A scientific research index that contains the full text of more than 1,000 Elsevier Science journals in the life, physical, medical, technical, and social sciences, as well as indexing for journals from cooperating publishers Updated daily Coverage varies by journal. May be searched by journal title and issue in which case the complete table of contents is displayed or by keyword, regardless of the journal title and issue.

Scopus is a large abstract and citation database of peer-reviewed literature: scientific journals, books and conference proceedings. Delivering a comprehensive overview of the world's research output in the fields of science, technology, medicine, social sciences, and arts and humanities, Scopus features smart tools to track, analyze and visualize research.

Annual Reviews provides over 50 journals that cover many disciplines, with access to both current and archived journal volumes.

The PubMed database contains more than 38 million citations and abstracts of biomedical literature. It does not include full text journal articles; however, links to the full text are often present when available from other sources, such as the publisher's website or PubMed Central (PMC).

AGRICOLA contains over 6 million records beginning in 1970, with information on agriculturally related subjects, such as forestry, nutrition, entomology, veterinary sciences and many more.