http://www.freethechildren.com/index.php
Free the Children is the world’s largest network of children helping children through education. Over one million young people are involved in programs in more than 45 countries.

http://www.awesomelibrary.org/Classroom/Social_Studies/World_Peace/
Heroes_and_Heroism/Child_Heroes.html
Library resource of news and articles about children who have found ways to help others.