I am not by any stretch of the imagination an activist but I would like to invite everyone to go and checkout this site: www.playingforchange.com
If you're a YouTube member there are also several links there for this organization.
I could not figure out how to make a link work here but I am sure most of you will enjoy watching the video below:
http://vimeo.com/moogaloop.swf?clip_id=2539741