Energy Saving Tips from Dominion Power—A good collection of suggestions for reducing energy use.
Energy Star Home Energy Yardstick—By entering info from utility bills, “compare your home's energy efficiency to similar homes across the country and get recommendations for energy-saving home improvements from ENERGY STAR”
RMI Home Energy Briefs—guides describing what the average homeowner can do to save energy.
Travel Matters—Tools to evaluate the impact of daily transportation choices on global atmospheric processes. A project of the Center for Neighborhood Technology.
Yahoo Green—Concrete steps to reduce emissions, showing effects of each.