>>74487check out
http://www.volunteersouthamerica.net/heres what they say about volunteering:
The volunteer programs on this site fall into 3 generic categories;
First there is the USD$~300 per month programs that provide full board and accommodation, these are 'flexible' programs that allow you to volunteer for long or short periods, at a time convenient to you. Whilst I'm confident that all the programs listed here do good work, personally, I would only sign-up to this type of program if I was confident that the money was being used properly, i.e. to cover genuine volunteer 'costs' and perhaps pay for other legitimate program expenses.
The second category of program is a day-centre type program, usually involving street-kids. In this type of program volunteers organise their own food & accommodation independently and volunteer during the day. Generally these programs charge little or no fees and are very pleased to see you. Good examples are LIFEargentina and the Cusco based street-kids programs.
The third category of program is the no-fees, longterm commitment operations e.g. voluntariosesperanza or fundacionsantamartha, which ask for 3-12 months of your time but charge no fees and offer free food & board to participants, you've got to love this type of operation and if you are looking to make a real difference and have a life changing volunteer experience, look no further.