Oprah Winfrey Net worth: $2.7 billion Source of wealth: Harpo Productions Residence: Chicago Age: 55 The Oprah brand continues to hold its value despite the recession, as viewers tune in for money-saving tips, celebrity interviews and relationship advice. Rural Mississippi native worked the television news circuit in Nashville, Tenn., and Baltimore, Md. Transformed faltering Chicago morning program into popular talk show. Launched The Oprah Winfrey Show nationally in 1986; now airs in 144 countries, brings in 44 million U.S. viewers each week. Her Harpo Productions helped create the Dr. Phil and Rachael Ray shows; Dr. Oz show due out this fall. Media matriarch planning to launch Oprah Winfrey Network early next year. Foundation recently donated to schools in Newark, N.J., and Atlanta. Learn more for the list at 13above.com