PALO ALTO, California - Facebook says former White House chief of staff Erskine Bowles has joined its board of directors.

Also a former president of the 17-campus University of North Carolina, Bowles was recently the co-chair of President Obama's National Commission on Fiscal Responsibility and Reform.

Bowles was chief of staff in the Clinton White House from 1996 to 1998. He ran unsuccessfully for the U.S. Senate in 2002 and 2004 on the Democratic ticket. He was president of UNC from 2006 to 2010.

His appointment expands Facebook's board to seven members.