Joan Rivers

The importance of heart health became very real for me when my father died of heart disease seven years ago. Having experienced the loss first hand, I am inspired to do everything I can to break the cycle and prevent families from losing loved ones to this preventable disease.

I won't sell any Facebook shares as long as I'm on the board. When I leave, all my Facebook shares will be donated to two or three D.C. education-related charities I've supported over the years. Thus, a small portion of Facebook's success will be shared with low income students in Washington.