Here is a post from a friend of mine from Regent who is living in Haiti. Corrigan managed to get a few minutes free to tell a bit of his story, and has concrete advice for how to help.
I’d only reiterate his plea to donate to organizations and churches that are already local (and have been for sometime), the Red Cross and other big groups may be helpful in the long run, but right now. it’s best to channel things through people already on the ground.