This is an interesting concept: you have a service-learning or philanthropy project at your school. How can you boost student engagement and meet like-minded students elsewhere?
The folks behind the LEAGUE (yes, it is always capitalized) had the same question, and devised a platform to do just that:
The LEAGUE is a school and web-based system for service learning that builds character and empowers young people to "do good" in their community, the nation and the world.
Change the world by empowering young people everywhere to get in the game of giving thoughtfully of their time, treasure and talent to make themselves, their community and world a better place.
The LEAGUE provides lesson plans and a way of tracking student and class participation in service learning projects. The fundamental unit is the classroom teacher, who becomes a LEAGUE coach for a particular project. (I suppose another adult, such as a Scout leader, 4-H leader or the like could also be a LEAGUE coach.)