Pioneers of Co-creating with Nature Energies: 

http://www.perelandra-ltd.com/

http://www.findhorn.org/

Natural Building Systems: 

http://earthship.com/

http://naturalhomes.org/naturalhomestour.htm 

Permaculture:

http://en.wikipedia.org/wiki/Permaculture

Local Initiatives in Sustainable living: 

Permaculture farms:

http://happytoes.co.za/  
http://berg-en-dal.co.za/

N P O's

http://www.seed.org.za/