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AGRICOLA

National Agricultural Library catalog; provides citations to scientific literature in the areas of agriculture, horticulture, ecology, and related fields.

Agriculture Network Information Center

Alliance of colleges, universities, Extension services, independent research centers, and other partners to provide access to agricultural information, documents, and news.

Alternative Farming Database

Provides published and online information for those seeking humane alternatives to factory farming.

Appropriate Technology Transfer for Rural Areas (ATTRA)

National Center for Appropriate Technology; comprehensive series of publications on sustainable production and pest management practices, alternative crop and livestock enterprises, innovative marketing, organic certification, and more.

Google Scholar

The familiar Google search engine, but focused on scientific and scholarly literature.

MISA's Database of Resources

Archived list of pre-2001 sustainable agriculture literature.

Missouri Alternatives Center Link List

Extensive links to documents on a wide variety of alternative agriculture topics, compiled from nationwide University Extension services and agriculture centers.

Organic Ag Info

Research consortium funded by the USDA provides current, accurate, scientifically-based or practically validated information about organic agriculture.

University of Minnesota Extension Service

Extensive collection of documents on all aspects of agriculture and horticulture in Minnesota; written by University of Minnesota faculty and staff and based on research conducted at the University of Minnesota.