Sara's Smiles
This foundation was built on the story of little Sara Burke. She fought her battle with a malignant brain tumor, but passed away in May of 2008. The Sara's Smiles Foundation wants "to extend a loving hand in creating a positive environment and upbeat experiences." They provide places to "hang out" and offer fun times to the children with cancer.
http://www.saras-smiles.org/index.html
http://www.saras-smiles.org/index.html