The current proposal Charity Work (volunteering) could have a lot of questions common with this page.
Would the question mentioned here be off-topic on this page?
I agree with @Foobar that these questions are off topic because they are about practical information and not economic phenomena. I would like to emphasize that economists (or most of us) don't have problems with non-profit organizations. Theoretical questions about them, such as how to measure the efficiency of NGOs or under what kind of assumptions can altruism result in Pareto-efficient outcomes are welcome.