Irrigation Scheduling:
      wwwcimis.water.ca.gov
      www.wateright.org

Irrigation Training:
      www.itrc.org
      www.irrigation.org
      lawr.ucdavis.edu/irrigation/index.htm

Irrigation Systems:
      www.cropinfo.net/wateru.htm
      www.wcc.nrcs.usda.gov/nrcsirrig/
      www.fao.org
      www.itrc.org
      cati.csufresno.edu/cit/

Tailwater Return Systems:
      www.yolorcd.org/ponds/tailwater/tailwater.shtml

Energy:
      www.energy.ca.gov/