Energy Calculators: Determine how much you can save with energy-efficient bulbs. For lighting, first enter a zipcode, then click on the icon for "Lighting Calc"
Search by ZIP code for lighting vendors that participate in PG&E's instant rebate program
PG&E Lighting Resources: information about lighting classes, factsheets and application notes, and instruments.
American Council for an Energy-Efficiency Economy: Lighting
Guide to Energy-Efficient Equipment Helps Owners and Occupants of Commercial Buildings: Updated 2nd Edition By Margaret Suozzo, Jim Benya, Mark Hydeman, Paul DuPont, Steven Nadel, and R. Neal Elliott; 185 pages including 14 illustrations and appendices of energy-efficient equipment, list of manufacturers, and additional resources. Available for $35 + postage and handling from ACEEE. Bulk discounts are available for purchases of 10 or more copies.