The National Library of Agriculture database that searches for articles and books in all areas of agriculture, forestry and animal science. 1970-present.

Biological & Agricultural Index covers all areas of agriculture, biology, and environmental science. Search for articles, book reviews, conference proceedings, and biographical sketches of scientists. 1983-present.

BIOSIS Previews covers all areas of the life sciences. Search for articles, patents, meetings, and books. Use the citation maps feature to find out who has been citing an article. 1926-present.

Use for information on economic theory and history, monetary theory and financial institutions, labor economics, international, regional and urban economics. Includes subject indexing and abstracts of articles, books, and working papers, and subject indexing of dissertation titles.

This database covers geology issues and provides access to scholarly journal articles, maps, reports of the USGS, theses and dissertations. 1669-present for North America. 1933-present for the rest of the world.

Use Google Scholar to search for scholarly, peer reviewed articles on any topic.

Scholarly articles focusing on the environment, with topics ranging from sustainable agriculture and alternate fuel sources to global warming and recycling.