Like you, I find myself thinking non-stop about the precious people of Haiti and their suffering. Heartbreaking. I just want to do something. Don't you? In addition to prayer perhaps you will consider the following:
Brooklyn Tabernacle Missions to Haiti - Carribbean Grace Tabernacle
You may need to scroll down Brooklyn Tabernacle's page a bit to find information about the current status of their Haitian mission work, as well as their missionary, Elsie who survived the earthquake.