I have heard good things about Franklin Graham's Samaritans Purse:http://www.samaritanspurse.org
It's a good organization. One you can trust.
For a situation like this, I wouldn't trust another to do the job they do ALL THE TIME.
I'm on Bill Frist's newsletter list and he announced via email today that he is traveling over to help the victims and he also touted Samaritan's Purse.
My first post at FR. I'm not conservative, but have been lurking for a long time since I like to see what people from all political perspectives have to say. I thought I'd make a post now because at a time like this politics should be set aside. I was working for an NGO last year in El Salvgador doing a post-relief project assessment in a rural area that had been hit hard by the earthquakes of 2001. We took a representative sample of one of the districts and aside from our organization and some local churches, the only group that had rendered assistance was Samaritan's Purse. I don't know much about them (I'm not religious and haven't work with faith-based relief orgs) I can personally attest that at least in this one instance they were an organization which helped affected local families in an area which the government and the larger NGOs overlooked. They literally provided the only life line to a small (necesarilly, given that I don't think Samaritan's Purse is a huge org like Red Cross) but targetted group of people.
That is my favorite charity. I also highly regard Feed the Children and the Salvation Army.