Al Kamen's In the Loop reports today that DOS has launched a new feature called Ask the Ambassador. You can now put questions directly to ambassadors around the the world via State's Ask the State Department webpage.
The site doesn't mention how frequently ambassadors will be available for a Q&A session, and it doesn't seem you get to pick the ambassador you'd like to question.
But to get the ball rolling, William R. Timken, Jr., former head of a family run roller-bearing company and "Bush campaign mega-contributor" and ambassador to Germany is fielding questions from the public.
Maybe some good opening questions for Mr. Timken are whether he speaks German; how he got to be an honorary citizen of Colmar, France; and if he has any previous foreign service work that would qualify him for a sensitive diplomatic post.