US Doctors For Africa promotes the flow of volunteer physicians, nurses and other medical professionals to Africa to provide capacity building and direct medical services to populations ravaged by disease, malnutrition and inadequate medical care.   Visit site

Cross-Cultural Solutions offers international volunteer programmes in Brazil, China, Costa Rica, Ghana, Guatemala, India, Peru, Russia, Tanzania and Thailand. Programmes range 2-12 weeks, making it easy for students to participate during holiday and summer vacations.  Visit site

Jesuit Volunteers Corps offers volunteers a year or more of working opportunity with the poor in five regions in the USA and several countries in Central and South America, Africa, Asia and Oceania.   Visit site