Energy Stars LED Page
As you would expect, ENERGY STAR provides great information on LEDs - from the nuts and bolts of design to the savings passed on to the user.
American Lighting Association
The ALA represents lighting manufacturers from across the country. Their objective look at LEDs and the transition taking place in residential and commercial lighting is a valuable resource for the consumer.
"Understanding Lighting for a More Energy Efficient Nation." So goes the motto of the Lumen Coalition, a relatively new site partnered with the ALA, aimed at conservation-savvy consumers who want to save money and the environment through more responsible lighting.
Energy Star LED Rebate Locator
Use the rebate locator to find offers, sales tax exemptions or credits and rebates on LED products. Enter your zip code and check the "LED" box.
Department of Energy
If there's one place that understands the electric bill, it's the DOE. Their lighting page walks you through lighting tips, energy efficiency and design.
Database for State Incentives on Renewables & Efficiencies