http://www.youngfarmers.org/

http://www.wwoof.net/

http://www.realfarmacy.com/

http://www.youtube.com/watch?v=VZXkDc70fNw&feature=c4-overview&list=UU9gycLxOvPQEF7_qBL8fAAg Vertical Farming and Aquaponics Video

http://www.exposingthetruth.co/underground-greenhouse/#axzz2jUDJ8g6s