Here is a blog written by an RN who is on her way to Haiti for disaster relief. I thought you might like to see it and follow her journey.
Here is a blog post about some different, legitimate ways to help.
Here is Compassion's blog post with their info too.
The devastation there is horrendous. I can't even imagine. But if it draws people to Him in their heartbreak, then good will come of it. Lord, have mercy!