Together with the whole world, we have been reading about the terrible disaster that has struck Haiti. Our thoughts are with the families that have been hurt and we hope for a quick international intervention to help the ailing country.
Please consider making a donation if you can. We have not performed any research on disaster relief to date, but our partner GiveWell has a few interesting notes about potentially good organizations here (even though they have not done specific research either). Of the few organizations that they mention, I would probably highlight Partners in Health, which seems to have moved rather quickly to provide aid in Haiti: http://www.pih.org/home.html.