Temple University Study Guide
http://www.temple.edu/classics/antigone.html
An excellent study guide for Antigone put together by students and professors at Temple University. There are solid general questions for each section of the play that should provide readers with a good starting place for their own analyses.
Theater History
http://www.theatrehistory.com/ancient/bates017.html
An introductory essay that analyzes key lines from the play, offering solid textual analysis.
A Teachers' Guide to Antigone
http://www.webenglishteacher.com/sophocles.html
A list of links for useful teachers' guides to Antigone.