General
Useful listing of NGOs in South America, by country (mostly in Spanish).
Specialises in affordable volunteer opportunities in Latin America
Argentina
Up-to-date information about travelling to Argentina, including Visas, from the Foreign Office.
Brazil
Lots of information about finding, and applying for, jobs in Brazil. From TARGETjobs, in partnership with AGCAS
Information and resources for studying in Brazil. From TARGETcourses, in partnership with AGCAS
Lots of info about Brazil, including a list of international NGOs working there.
Has projects in Brazil and the UK to improve the lives of Brazillian street children.
Peru
Charity providing care for children in Peru. Flexible volunteer programmes (1 month - 6 months), with full training provided (in Brighton or Peru)