Irrigation & GREEN Industry
http://www.igin.com/

San Diego County Water Authority
http://www.sdcwa.org

California Landscape Contractors Association
http://www.clca.org/

Community Associations Institute
http://www.cai-sd.org/

Contractors State License Board
http://www2.cslb.ca.gov/CSLB_LIBRARY/Name+Request.asp

Be Water Wise
http://www.bewaterwise.com

Smart Landscape Irrigation Controllers
http://www.irrigation.org/swat/default.asp