Earth Pledge Green Roofs Initiative
- Supporting the creation of green roofs upon New York City's flat rooftops. Includes rationale, research, projects, workshops, and resources.
- http://www.earthpledge.org/GreenRoof.html

EDC Magazine: Green Roofs: Stormwater Management From the Top Down
- Article by Katrin Scholz-Barth of HOK discussing green roofs in an urban setting.
- http://www.edcmag.com/CDA/Archives/d568f635d8697010VgnVCM100000f932a8c0____

Portland Environmental Services: Ecoroof Program
- Includes program information and links to PDF documents.
- http://www.portlandonline.com/bes/index.cfm?c=deggd

Northwest EcoBuilding Guild: Green Roof Project
- Developing the technology for wide-scale residential application in the Pacific Northwest. Includes photo gallery, plant list, soils, monitoring options, and links.
- http://www.hadj.net/

City of Chicago: City Hall Rooftop Garden
- Includes design considerations, construction timeline, plants and landscaping [PDF], and monitoring methods and results.
- http://egov.cityofchicago.org/city/webportal/portalDeptCategoryAction.do?deptCategoryOID=-536889314&contentType=COC_EDITORIAL&topChannelName=Dept&entityName=Environment&deptMainCategoryOID=-536887205

Livingroofs.org
- Non-profit UK organisation promoting green roofs. Includes roof types, benefits, issues, research, list of applications in the UK, case studies, and suppliers.
- http://www.livingroofs.org

Green Roofs for Healthy Cities
- Dedicated to creating a green roof marketplace in North America. Includes news, upcoming events, FAQ, projects, public policies, and research.
- http://www.greenroofs.org/

D.C. Greenworks
- Nonprofit organization in Washington, D.C. providing job training and design, consulting, and installation services relating to rainwater management.
- http://www.dcgreenworks.org/LID/greenroofs.html

Applying Green Roofs to Schools
- Article by Katrin Scholz-Barth from HOK on the benefits of green roofs on schools.
- http://www.ulm.edu/lsfma/greenroof.html

LIDC: Green Roofs
- Includes design plans, specifications, costs, and maintenance.
- http://www.lid-stormwater.net/greenroofs/greenroofs_home.htm

National Geographic News: Plant-Covered Roofs Ease Urban Heat
- The promotion of green roofs by city governments in Canada, Japan, and the United States.
- http://news.nationalgeographic.com/news/2002/11/1115_021115_GreenRoofs.html

Green Roofs Cool City Rooftop Gardens in Chicago to Fight Smog, Heat
- Why city officials are encouraging green roofs.
- http://www.cityfarmer.org/greenroofs.html

Center for Green Roof Research at Penn State University
- To demonstrate and promote green roof research, education, and technology in the Northeastern United States. Includes news, research, faculty profiles, and links.
- http://hortweb.cas.psu.edu/research/greenroofcenter/

Seattle Daily Journal of Commerce : Green Building Starts at the Top
- Article by Elizabeth Daniel about the architecture and its application in Seattle.
- http://www.djc.com/news/enviro/11113857.html/

Greenroofs.com
- Information about green roof architecture including history, advantages and issues, plant lists, markets in North America and Europe, case studies, events, and links.
- http://www.greenroofs.com/