My wife had me donate to UMCOR today. According to my wife, 100% of the funds go to supporting the relief effort.
UMCOR - United Methodist Committee on Relief (Haitian Emergency)
Never heard of UMCOR before, but Charity Navigator gives them good marks. They do have some operating expenses, so it's not 100% of donations that go to their programs, but it is in the high 90's - which is very good compared to a lot of other charities.
Haiti text message donations may take 90 days to process - Jan. 15, 2010Texting a donation to Haiti relief efforts feels like an immediate way to help, but it could take up to three months for your $10 to land in American Red Cross coffers.