DipNote

DipNote is the official blog of the United States Department of State. It was started on September 25, 2007 with a first post by the U.S. Assistant Secretary of State for Public Affairs Sean McCormack. DipNote was revised in 2009, with the Departments' 21st Century Statecraft initiative. DipNote works in conjunction with other public diplomacy programs as part of former Secretary of State Hillary Clinton's smart power initiatives. 
Link.
DipNote: Official blog of the US Department of State