Another very worthwhile organization is Potters for Peace. Though not directly involved in Haiti, they travel the world teaching people how to make inexpensive life-saving ceramic water filters.
Every day 5.000 children die due to unsanitary water, (WHO 2005). Since 1998 Potters for Peace has traveled the world teaching the fabrication of a low-cost ceramic water filter, helping to bring clean, potable water to those who need it most.