Since 1996, Ruddy has been Media Fellow at the
Hoover Institution on War, Revolution and Peace at
Stanford University. Ruddy serves on the board of directors of the Financial Publishers Association (FIPA), an industry trade group whose goal is "to share knowledge of best business practices to help our members' publications grow and prosper, while empowering readers with unbiased, independent information".
He is a member of the International Council, chaired by
Henry Kissinger, at the
CSIS, a bipartisan Washington, D.C., think tank focused on national security and foreign affairs. Ruddy also served as a representative on the U.S. delegation headed by Senators
Joseph Lieberman and
Lindsey Graham to the NATO 44th
Munich Security Conference.