Once again the local chapter of the United Way is sponsoring the Summer of Service. This is a volunteer program for youth that gives them weekly opportunities to do service projects and improve the community in which they live.
If you are interested in learning more or would like to get involved, go here. They already had their kickoff but it is not too late to join.
If you are not local or you do not have a youth, still check it out. I think this is a great idea/model that could be adapted and organized anywhere.