* President, Rockefeller Foundation -- 2005 to present. * President Emerita, University of Pennsylvania -- 2004 to present. * President, University of Pennsylvania -- 1994 to 2004. * Provost, Yale University -- 1992 to 1994. * Other Directorships: Comcast Corporation and AMR Corporation. * Other Activities: World Trade Memorial Foundation (Director), Carnegie Hall (Director), Brookings Institution (Honorary Director), Schuylkill River Development Corp. (Director), White House Project (member), Council on Foreign Relations (member), Institute of Medicine (member), New York City Commission for Economic Opportunity (member), and Philadelphia Chamber of Commerce (member of the Executive Committee).