Ambassador Michael Guest, the first openly gay appointed to serve as a U.S. Ambassador, wrote an op-ed for the Advocate. You should go take a look.
Michael Guest Op-ed: A Changed U.S. State Department
"For those of us in the hall, Clinton’s speech seemed powerfully spoken from the heart. To me, a gay former diplomat, it also demonstrated the resilience of our diplomacy to respond to real and urgent needs. The speech, indeed, represents only part of a powerful legacy she will leave on LGBT rights at the State Department. Her early efforts to end discriminatory workplace policies for gay and lesbian diplomats set the standard for other federal agencies. The department’s attention to LGBT problems in its annual human rights reports has strengthened. Passport procedures have been changed to benefit transgender citizens and gay and lesbian parents. International speaker and exchange visitor programs now consciously reach out to LGBT populations, helping make the case for equal treatment in even the most skeptical overseas audiences. Funding for antidiscrimination and hate crimes–related projects has followed. And U.S. embassies now interact increasingly with LGBT groups at all levels, giving the latter greater visibility and respect in their communities. "
You can read the whole op-ed here.