Hallo there,
It is really nice to read your blog. So many experiences shared for Bulgaria! I've never red before that much about this country in a blog. I have been there for different events and enjoyed their food. Much better then Rumanian, Turkish and Greek cosine. It is a great place to learn from their culture. They have impressive historical background from The Ancient Thracians. What a great and precise art-The Ancient Thracian Treasure! (3000-1200 B.C.) Have you seen it? The American College of Sofia is the oldest American School in Europe and are teaching there! What a great chance. You should try to contact Mr. Petko Bocharov who is a great writer and journalist (the oldest working journalist in the World-93 year old gentleman) who was alumni from the American College of Simeonovo, Sofia. He wrote books about about his experience in three different periods of the Bulgarian history and there are chapters dedicated to the College.
Let me know if this was a good info for you. 
Sincerely,
Max