The following are lists of some resources you might find helpful.
GENERAL CONTRACTING & BUILDING:
- State of California Contractors State License Board: http://www.cslb.ca.gov/
 - Nevada State Contractors Board: http://www.nvcontractorsboard.com/
 - Arizona Registrar of Contractors: http://roc.az.gov/
 - Oregon Construction Contractors Board: http://www.oregon.gov/ccb/
 - Washington State Department of Labor & Industries: Contractors: http://secure.lni.wa.gov/verify
 
LANDSCAPE:
- State of California Landscape Architects Technical Committee: http://www.latc.ca.gov
 - Nevada State Board of Landscape Architecture (NSBLA): http://nsbla.nv.gov/
 - Arizona State Board of Registration: Landscape Architects: https://btr.az.gov/applicants/landscape-architect-applicants
 - Oregon State Landscape Architect Board: http://www.oregon.gov/landarch/
 - National Council of Architectural Registration Boards: http://www.ncarb.org/
 - The American Society of Landscape Architects: http://www.asla.org/
 
GREEN & SUSTAINABILITY
- National Resources Defense Council (NRDC): Building Green: http://www.nrdc.org/buildinggreen/
 - U.S. Green Building Council: http://www.usgbc.org/
 - United States Environmental Protection Agency: Sustainability: http://www.epa.gov/sustainability/
 - Environmental Science.ORG: Sustainability: http://www.environmentalscience.org/sustainability/
 
ENVIRONMENTAL:
- California Wildlife Center: http://cawildlife.org/
 - Architecture 2030: http://architecture2030.org/
 - Botanic Gardens Conservation International: http://www.bgci.org/
 - Theodore Payne Foundation: Wild Flower Hotline: http://theodorepayne.org/learn/wildflower-hotline/
 - Organization for Economic Co-operation and Development: http://www.oecd.org/
 - National Resources Defense Council: http://www.nrdc.org/
 - Union of Concerned Scientists: https://www.ucs.org/
 - United States Environmental Protection Agency: http://www.epa.gov/
 - South Coast Air Quality Management District: http://www.aqmd.gov
 
HISTORIC PRESERVATION:
- National Trust For Historic Preservation:http://www.preservationnation.org/
 - Los Angeles Conservancy: http://www.laconservancy.org/
 - National Park Service: Historic Preservation: http://nps.gov/subjects/historicpreservation/
 - American Historical Association: http://www.historians.org/
 
CITY SERVICES:
- City of Los Angeles Department of Building & Safety: http://ladbs.org/
 - City of Los Angeles Department of City Planning: http://cityplanning.lacity.org/
 - Los Angeles County Almanac: Cities of Los Angeles County Directory: http://www.laalmanac.com/cities/index.php#cities
 
PUBLICATIONS:
- Architect Magazine:http://www.architectmagazine.com
 - Architizer: http://architizer.com
 - Architect’s Newspaper:http://archpaper.com
 - Architectural Record: http://www.architecturalrecord.com
 
INTERIOR DESIGN:
- American Society of Interior Designers: http://www.asid.org/
 - International Interior Design Association: http://www.iida.org/
 - California Council for Interior Design Certification: http://ccidc.org/
 
ARCHITECTURE:
- State of California Architects Board: http://www.cab.ca.gov/
 - National Council of Architectural Registration Boards: http://www.ncarb.org/
 - The American Institute of Architects: http://www.aia.org/
 - The Institute of Classical Architecture & Art: http://www.classicist.org/
 - Better Cities & Towns (New Urban Network): http://bettercities.net
 - Congress for the New Urbanism: http://www.cnu.org/
 
UNIVERSAL DESIGN:
- Universal Design: http://www.universaldesign.com/
 - Institute for Human Centered Design: Universal Design: http://www.humancentereddesign.org/index.php?option=Content&Itemid=3/
 - Family Care Giver Alliance: http://www.caregiver.org/