BioOne Complete is a database of more than 200 subscribed and open-access titles in the biological, ecological, and environmental sciences.
JSTOR provides access to millions of journal articles, books, images, and primary sources in 75 disciplines.
The Science Citation Index is a multidisciplinary database, with searchable author abstracts, covering the journal literature of the sciences. It indexes 5,300 major journals across 164 scientific disciplines, with all cited references captured.