http://www.volunteersouthamerica.net/ A great resource for South American volunteering
http://www.volunteerbolivia.org/ For volunteering, homestays, ecotourism and language school in Cochabamba run by our friend Lee.
http://bolivia-online.net A great Bolivia resource created by our friend Bastian!
http://www.sachasolutions.com/ A new NGO based in Sucre
http://www.sustainablebolivia.org/ For volunteering, homestays, and language learning in Cochabamba.