We only had a brief experience there but you can learn more about various organizations trying to encourage sustainable and realistic lifestyle changes. There´s feeding, schooling, clothing, medical and vocational training programs currently up and running. The following two charities are groups we directly had contact with and learnt about their roles in the community.
Los Quinchos www.losquinchos.it
Pro Nica http://www.pronica.org/
http://www.lensofvisionexpression.org/
Nica Hope http://www.nicahope.org/main/
http://www.youtube.com/watch?v=2mfo4uen5MY&feature=related