Academic Search Complete
Provides references to articles from scholarly journals and magazines. Full text is available for many articles.
Applied Science & Technology Source
Provides full text articles from over 800 journals and magazines. Includes some coverage of geology.
General Science Abstracts (1984-)
Provides references to articles from scientific journals in geology and other physical sciences.
Google Scholar
Provides references to scholarly books and articles.
OCLC Electronic Collections Online (1995-)
Provides references to articles from academic journals.
SpringerLink
Lists articles in SpringerLink science journals. Includes some coverage of geology. Full text is available for most articles.
WorldCat
Provides references to books, videos, cds and other items in academic and public libraries.