Sustainable Resources

http://www.epa.gov/greenacres/

http://www.sustland.umn.edu/

http://www.organiclandscape.org/en/

http://portlandonline.com/BES/

http://usgbc.org/

http://www.beyondpesticides.org/pesticidefreelawns/

http://pesticide.org/

http://www.organiclandcare.org/

http://www.organiclandscapers.org/index.html

Books:
Sustainable Landscape Construction, A Guide to Green Building Outdoors: 2nd Edition
J. William Thompson and Kim Sorvig ISBN: 9781597261432

Rain Gardens
Nigel Dunnett and Andy Clayden, 2007
Timber Press

Residential Landscape Sustainability
Carl Smith, Nigel Dunnett, and Andy Clayden, 2007