AMIGOS DE LA TIERRA
http://www.tierra.org

PARQUES NACIONALES DE ESPAÑA
http://etsi.tel.uva.es/~dsaipen

WEB VERDE
http://www.pangea.org/~vmitjans/index.html

GREENPEACE
http://www.greenpeace.org/index.shtml
http://www.greenpeace.es

ADENA

http://www.wwf.es

AEDENA

http://nodo50.ix.apc.org/aedenat   

ÍNDICE DE ECOLOGÍA URBANA

http://www.amarillas.com/verdes/barba/index.htm

PLANET KEEPERS
http://www.realtime.net/~waynep/plankeep.htm

LA CASA SOLAR DE MAINE
http://solstice.crest.org/renewabes/wlord/

RECLAIM THE STREET FROM CARS
http://www.htc.wmin.ac.uk/campaigns/rts.html

NOTRE AVENIR A TOUS
http:// www.abacom.com/~pdescham

OUR GLOBAL NETEHBOURHOOD (Suiza)
http://www.cgg.ch

EARTH FIRST
http://www.hrc.wmin.ac.uk/campaigns/ef/earthfirst.html

FRIENDS OF THE EARTH
http://www.fol.co.uk

WORLD WIDE FUND FOR NATURE
http://www.panda.org