Very informative post, I loved it! I'll check the eating disorders one because my best friend is battling one (I thought about asking for support in LF girls thread, but I don't really know what kind of support... eh).

BTW, I'm currently supporting Loving Arms (plus a whole lot of all kinds of click to donate sites), not really a charity, but still, and I use Good Search for this one.
It gives (from the site):
Free on-site pregnancy tests
Accurate information concerning pregnancy, abortion, alternatives to abortion, and sexually transmitted diseases
Medical referrals for ultrasound and prenatal care
Clothing closet and supplies (maternity and infant)
Support and friendship throughout pregnancy
Referrals for legal aid, social services, counseling, spiritual guidance and housing
Abstinence education
Post-abortion support

It's so hard to choose what to Good Search for though, so I plan to swap between 2-4 charities every few months :D And the money grows SO quickly there, and I only use it as much as I'd use google!