Resources from Princeton University Subcription Databases:
Web of Science 1900+ Also known as the Web of Knowledge. Provides access to the articles, reviews and letters of the major scholarly journals in all fields and disciplines. Includes major humanities and social sciences resources, too.
Scopus 1996+ (and earlier) an international indexing resource for journal articles that covers more foreign resources. Best for science, technology and medicine. Less social sciences. No humanities.