| AH&LA's Green Resource Center click here |
| Environmental Defense Fund click here |
| Energy Star click here |
| Environmental Leader click here |
| Greener Buildings click here |
| Green Energy Choice click here |
| Green Hotels Association click here |
| Green Lodging News click here |
| Ideally Green click here |
| It's a Green World click here |
| Institute of Ecotourism (IET) click here |
| Leadership in Energy & Environmental Design (LEED) Rating Systems click here |
| National Furniture Bank Association click here |
| National Recycling Coalition click here |
| Office of the Federal Environmental Executive click here |
| Rare click here |
| ReGeneration click here |
| U.S. Green Building Council click here |
| Tree Hugger click here |
| What is Green Cleaning? (from about.com) click here |
| Worldwatch Institute click here |
