Here are some industry links of value to the Lighting Professional.

IALD - International Association of Lighting Designers

IESNA - Illuminating Engineering Society of North America

Lighting Research Center - "the world's leading university based research and education organization devoted to lighting"

NECA - National Electrical Contractors Association

NEMA - National Electrical Manufacturers Association

Spaulding Lighting Guide to Energy Efficient Lighting for Parking Areas – LED vs. HID