Charity Angel is a one to one charity idea of professor Robin Hanson. He wrote "But if you think yourself one of the rare exceptions, whose primary purpose is to actually encourage changes in the world, consider just finding a person who you think has already made a substantial contribution to your cause, and just writing them a check ." You can read his full view from these links: http://mason.gmu.edu/~rhanson/charityangel.html and http://www.overcomingbias.com/2011/01/be-a-charity-angel.html
It's an interesting idea. What do you think about it?