Green roofs have a history and certainly look like they’ll have a future - especially with regards to re-inventing carbon neutral, sustainable cities. Green roof’s popularity are endorsed by the number of websites devoted to them. See a list of such resources below.

http://www.greenroofs.org/ - US based Green Roofs Network
http://www.livingroofs.org/ - UK based Green Roofs Network
http://www.toronto.ca/greenroofs/what.htm - information site from Canada
http://www.greenroof.se/ - Scandinavian based
http://www.hrt.msu.edu/greenroof/ - Green Roof research team, Mitchigan, US
http://greenroofs.wordpress.com/ - Australia’s Green Roofs for Healthy Cities website