• AgNIC
(Agriculture Network Information Center) A cooperative project between the National Agriculture Library and Land Grant Universities. Serves as a guide to quality agricultural information on the Internet

• AAFC Site Index
Canadian agriculture and agri-food resources 

• AgriGator * Worldwide Agricultural SITE INDEX
Agricultural and biological related resources from the University of Florida

• Biological, Agricultural & Medical INFOMINE
A virtual library with organized access to university level research and educational tools on the Internet

• Encyclopedia of Life Sciences
  (For UIUC-affiliated staff and students, may require Net ID and password) Browse by subject, alphabetically, or search the database. Includes links, glossaries, dictionaries, and multimedia tools.
• Google Scholar
• National Agricultural Library
  One of the four national libraries of the United States; part of the USDA's Agricultural Research Service. Includes links to publications, databases, research guides, and more
• National Council for Science and the Environment (NCSE)
Includes environmental links, reference resources, full-text publications, issues, and news

• SciCentral
Metasite gateway to online resources grouped by science area; includes links, articles, educational resources, multimedia, directories, grant information, and more

• Scirus
Science-specific search engine from Elsevier Science; separates search results between web sites and journal articles while also offering search refining suggestions. Locates both free and subscription-based journal articles

• United States Department of Agriculture
(USDA) Contains links and information to US government ag departments, research, news, and publications

• United States State Agricultural Sites
• VISTA
This Web site contains publications written by faculty and staff of University of Illinois Extension and departments of the University of Illinois College of Agricultural, Consumer and Environmental Sciences.

• WWW Virtual Library: Agriculture
Search agricultural web sites and resources by region, type of site, or subject area.