You Matter (Round Two)

CNN has been running a regular feature called “CNN Heroes,” providing accounts of everyday people who have done extraordinary things.

Their current focus is on young heroes, and they have an amazing array of teenagers whose accomplishments range from helping to free slaves across the world (Zach Hunter, pictured right) to encouraging people to properly inflate their tires to preserve gas.

The impressive gallery is here.

Have you ever been involved in some sort of charitable effort or group much larger than yourself? What are your experiences like?