Intute - Agriculture: provides free access to high quality resources on the Internet. No new resources are being added after July 2011.
National Institute of Food and Agriculture: provides a wealth of information on current food and agriculture research and education programs throughout the US
PubAg is an open-access resource from the National Agricultural Library (NAL) containing sheer amount of recent open access material, as well as commercially published literature.
Agra-Net: a leading information specialist on soft commodities, agriculture and food policy, markets and trade.
Agriculture Network Information Center (AgNIC): stay up-to-date with the latest agricultural news and events taking place around the world.
ELDIS: Research Guides in Agriculture provides easy structured access to collection of research and policy documents.
International Fund for Agricultural Development (IFAD) was established to finance agricultural development projects primarily for food production in the developing countries.
Index Fungorum for names of fungi.
International Plant Names Index IPNI indexes botanical names of seed plants, ferns and fern allies that have appeared in scholarly publications. For names of fungi.
Plant Information Online discover sources in 1104 North American nurseries for 106953 plants, find 371392 citations to 156460 plants in science and garden literature.
Plants Database provides standardized information about the vascular plants, mosses, liverworts, hornworts, and lichens of the U.S. and its territories.
Compendium of Pesticide Common Names provides details of the status of all pesticide common names, together with their systematic chemical names, molecular formulae, structural formulae and CAS Registry Numbers.
National Pesticide Information Center, from Oregon State University and the US EPA, provides "objective and science-based information" for professionals and the general public about pesticide use, exposure, environmental fate, and crisis management.