1. http://www.fao.org/waicent/faoinfo/agricult/agl/aglw/ies.htm
2. http://www.greenindustry.com/search/ij.asp
3. http://www.wiz.uni-kassel.de/kww/sakia/sakia_i.html
4. http://www.nal.usda.gov/ttic
5. http://www.wrpllc.com
6. http://www.irri-gate.com
7. http://www.irrigation.org/search/search.asp

1. http://www.web-agri.com
2. http://www.ageze.com
3. http://www.agfind.com
4. http://www.agribusinessworks.com/searchpage.html
5. http://www.agview.com
6. http://www.webdirectory.com
7. http://www.joefarmer.com
8. http://mc-science-agriculture.logika.net
9. Online Irrigation Benchmarking Services

1. http://www.webdirectory.com/