FORTUNE -- The name Buffett is in the news, but the first name is Doris, not Warren. His older sister by three years -- that makes her 85, him 82 -- she is pursuing a decade-long interest by sponsoring a new, free, online course about philanthropy.
The goal of the program, called Giving With Purpose is to teach college students -- and anyone else who cares to kibitz -- how to beneficially contribute to charity. That's not necessarily easy. There are IRS rules for giving that must be learned, and there is wayward, wasteful philanthropy to be avoided.