Here are some insightful websites about Mikhail Bulgakov, his "Master and Margarita", Russian theater greats, etc.
Kaisyn Kouliev - great Balkarian-Russian author, poet and humanitarian
www.masterandmargarita.eu - a multilingual site by Jan Vanhellemont.
Master and Margarita - the complete text of the novel in the original Russian version
Master and Margarita - the complete text of the novel in the 1997 English translation
Master and Margarita - a website conceived as a project for the 1998 "Davis winterterm workshop" at Middlebury College.