This site was circulated on a Moms Club email list I'm on. People upload their own videos in support of certain charities and the charities receive $$ based on views and donations.
http://www.whatkindofworlddoyouwant.com/
There are a lot of videos and a list of charities, but the link that was sent to our group was for Autism Speaks, it's a touching video:
http://www.whatkindofworlddoyouwant....view/id/408214