Each of our new profile pages ( Bill Gates, Oprah Winfrey, Mark Zuckerberg) combine hand-gathered information (such as the net worth and biographical information of the Forbes 400) with public and semi-public feeds such as news (from trusted sources such as the NYT, the Wall Street Journal and regional papers), photos from Daylife and Getty, board memberships (from Capital IQ) and political contributions (from the Federal Elections Commission).

FORBES: Our new 400 pages: Wealth Meets Data