I came across this site today and was very moved.
The stated mission of the site:
"Flashes of Hope is a non-profit organization dedicated to creating uplifting portraits of children fighting cancer and other life threatening illnesses. The portraits, taken by award-winning photographers, help children feel better about their changing appearance by celebrating it. For families of terminally ill children, it's especially important to have a portrait that preserves forever the beauty, grace and dignity of their child. "
Some very beautiful children here, and some great photographt too...
Flashes of Hope Gallery
It is encourage to see fellow photographers making the lives of these special individuals a little brighter.