From a Friday posting on the Official Disney Parks Blog…
During a special ceremony at the American Gardens Theatre at Epcot, cast members Tye Arnold and Rich Tamayo were selected for this revered role.
As they received their gold pins in the midst of confetti, cheers and fanfare, both became part of a special group of cast members who have carried on a tradition started by Walt Disney himself in 1965, when he was overwhelmed with appearance requests. Today, Ambassadors may be seen at community events, helping build playgrounds, sorting school supplies for children, greeting special guests and honoring fellow cast members for anniversaries and milestones.
http://www.youtube.com/watch?v=DnbtywzTLRM