| Certification | |
| U.S. Green Building Council | www.usgbc.org |
| World Green Building Council | www.worldgbc.org |
| Cleaner and Greener | www.cleanerandgreener.org |
| Green Guard | www.greenguard.org |
| Green Seal | www.greenseal.org |
| Green Globes | www.greenglobes.com |
| Government | |
| Center of Excellence for Sustainable Development | www.sustainable.doe.gov |
| U.S. Environmental Protection Agency | www.epa.gov |
| U.S. Department of Energy | www.doe.gov |
| ENERGYSTAR | www.energystar.gov |
| WaterSense | www.epa.gov/watersense |
| Office of Energy Efficiency and Renewable Energy | www.eere.energy.gov/buildings/highperformance |
| Environmental Resources & News | |
| Leonardo Academy | www.leonardoacademy.org |
| Rocky Mountain Institute | www.rmi.org |
| GreenBiz | www.greenbiz.com |
| Building Green | www.buildinggreen.com |
| Your Energy Forum | yourenergyforum.com |
| Healthcare | |
| H2E | www.h2e-online.org |
| American Society for Healthcare Engineering | www.ashe.org |
| Green Guide for Healthcare | www.gghc.org |
| Education | |
| Higher Education Associations Sustainability Consortium | www.aashe.org/heasc |
| National Association of College and University Business Officers: Campus Sustainability | www.nacubo.org/x2153.xml |
| Association for the Advancement of Sustainability in Higher Education | www.aashe.org |
| Retail/Hospitality | |
| Green Hotels Association | www.greenhotels.com |
| Residential | |
| LEED for Homes | www.usgbc.org/DisplayPage.aspx?CMSPageID=147 |
| National Association of Home Builders: Model Green Home Building Guidelines | www.nahb.org/publication_details.aspx?publicationID=1994§ionID=155 |
| Mobility | |
| Green Car Congress | www.greencarcongress.com |
| Business | |
| Dow Jones Sustainability Index | www.sustainability-indexes.com |
| Chicago Climate Exchange | www.chicagoclimatex.com |
| Green Cleaning | |
| Ashkin Group | www.ashkingroup.com |
| Associations & Organizations | |
| Alliance to Save Energy | www.ase.org |
| American Council for and Energy Efficient Economy | www.aceee.org |
| American Institute of Architects: Sustainability | www.aia.org/susn_default |
| Architecture 2030 | www.architecture2030.org |
| International Facility Management Association | www.ifma.org |
| International Solar Energy Society | www.ises.org |
| Building Owners and Manager’s Association International: The G.R.E.E.N. | www.boma.org/AboutBOMA/TheGREEN |
| American Society of Heat, Refrigeration and Air-Conditioning Engineers | www.ashrae.org |
| Sustainable Product Standards | |
| The Institute For Market Transformation To Sustainability : Sustainable Product Standards | mts.sustainableproducts.com/standards.htm |
