I donated to Eitz Chaim - which means Tree of Life - on give2gether.com (here's the link: http://www.give2gether.com/projects/eitz-chaim/). It is a very worthy cause, dedicated to the memory of Chaim Warman, a 21 year old boy who was killed in a motorcycle accident the might of July 31st, 2011. I would recommend this charity to anyone who is looking for a place to do good.
Become a part of their success.