If you have the time, check out this short video that was made by the United States Peace Corps to commemorate 50 years of service in Malawi, Africa.  It highlights the permaculture work of Never Ending Food.  Both Stacia and Kristof Nordin were Peace Corps Volunteers in Malawi from 1997-2000.  The video is posted on the United States embassy/Lilongwe Facebook page and can be see by clicking here.