Philips Lighting

Room by room tips.
http://www.eur.lighting.philips.com/int_en/cons/segments/home/index.html

Underwriters Laboratories - Luminaire

Marking guide indexed by both type and subject matter. (pdf)
http://www.ul.com/regulators/luminaries.pdf

Home Lighting Magazine

Trade magazine for the decorative lighting industry with product search and article archive.
http://www.homelighting.com/

Howstuffworks

Article: Are fluorescent bulbs really more efficient than normal light bulbs?
http://www.howstuffworks.com/question236.htm

Lighting Facts

Photographs and descriptions of different styles of fixtures and bulbs, as well as cleaning tips, wiring diagrams, and suggestions for how to light a room.
http://www.lightingfacts.com/

Garden Guide - Lighten Up

Article on installing low voltage outdoor lighting.
http://www.gardenguides.com/articles/lightenup.htm

Don Klipstein's Lighting Info

Information and links on various types of light sources and the technology that makes them work.
http://members.misty.com/don/light.html

MSU Cares - Lighting With Energy Efficiency In Mind

Article covers quality, categories and types, controls, daylighting, maintenance, and optimizing efficiency.
http://msucares.com/pubs/publications/p2269.html

American Lighting Association

Consumer resource section includes articles on kitchen, bathroom, landscape, and energy efficient lighting.
http://www.americanlightingassoc.com/info_main.php

Change A Light, Change the World

Energy star guide on the considerations, benefits, and tips for upgrading to more efficient products.
http://www.energystar.gov/index.cfm?c=lighting.pr_lighting