Post earthquake reconstruction.
It is very important to help right now, but is is also very important not to forget Haiti, when all of the journalists and cameras are gone in a couple of months. Maybe earlier. It is at that time, when they need our help the most to rebuild and get back on their feet. Right now there is chaos and rubble. You can help by donating to many different organizations, here is one option:
If you could afford to give money in january, I bet you could also give something in february and in march. 
Also…
Microfinance through Kiva – a little effort a big difference