The Appraisal Foundation - http://www.appraisalfoundation.org 

 The Appraisal Institute - http://www.appraisalinstitute.org

 Fannie Mae - http://www.fanniemae.com 

 National Association of Independent Fee Appraisers - http://www.naifa.com

 National Association of Real Estate Appraisers - http://narea-assoc.org/ 

 Office of Real Estate Appraisers (CA) - http://www.orea.ca.gov 

 Orange County Chambers of Commerce - http://www.ocair.com/visitoc/citieschambers.htm 

 Riverside County Chambers of Commerce - http://www.riverside-chamber.com 

 Southern California Chapter of the Appraisal Institute - http://www.sccai.org 

 Uniform Standards of Appraisal Practice (USPAP) -
    http://commerce.appraisalfoundation.org/html/2006%20USPAP/toc.htm