http://www.nema.org

National Electrical Manufacturer’s Association

http://www.ncqlp.org

National Council on Qualifications for Lighting Professionals

http://lighting.com/

On-line search resource for lighting professionals

http://www.iaeel.org/

International Association for Energy-Efficient Lighting

http://www.iald.org/

Internaltional Association of Lighting Designers

http://www.darksky.org/

International Dark-Sky Association

http://www.lightforum.com/

Resource Center for Lighting Design and Application

http://www.lrc.rpi.edu/

Lighting Research Center

http://www.nlb.org/

National Lighting Bureau

http://www.lightsearch.com/

http://www.thelightingcenter.com/

Lighting Resource Center