Visit the following organizations offering volunteer free in South America:
ACDI/VOCA - Is looking for professionals and other skilled individuals to volunteer for free in South America and all over the world.
Peace Corps - A agency offering college graduates the chance to volunteer free in South America.
Health Volunteers Overseas - Looking for individuals who want to work on health programs by volunteering for free in South America.
VSO - Is looking for individuals to volunteer free in South America for long term development programs.
Doctors Without Borders - A famous group looking for doctors and other to volunteer free in South America on health programs.