The United States Government has set up a number of websites to help energy consumers learn about their energy use and make energy efficient choices. Here are a few:

EnergySavers.gov
Partnerships for home energy efficiency

EnergyStar.gov
Helps consumers make purchasing choices that reduce the energy they use

Home Energy Saver (hes.lbl.gov)
An interactive program to help consumers identify the best ways to save energy in their homes and find the resources to make savings happen

Dept. of Energy Efficiency & Renewable Energy (eere.energy.gov)
Government resources and data to help consumers research their energy saving options