Links
International Association of Lighting Designers
National Council on Qualifications for the Lighting Professions(Lighting Certification)
Lightforum.com (Great general lighting information!)
Lightsearch.com (Great lighting search engine!)
Architectural Lighting
Lighting Research Center
National Lighting Bureau
Penn State Architectural Engineering Lighting & Electrical Emphasis
A-Z Listing of Lighting Manufacturers
Susquehanna Section of the Illuminating Engineering Society of North America
International Dark-Sky Association