Well... I have officially learned my lesson about USING THE SEARCH TOOL! I wish I had known about this thread earlier... it's so much more fun to talk to people who actually love the person you're "fangirling" than people who are just humoring you. Although, why I bother talking to people who don't love this boy as much as I do is beyond me... He's amazing!
http://www.stjude.org/donate
http://1111am.com
http://www.leukemia-lymphoma.org
http://until.org/
http://www.hrc.org/
http://twloha.com