Are you trying to catch up in your reading? Are you a little lost when it comes to Shakespearean language? Or are you interested in all things Macbeth? Here are some websites you might find interesting or helpful.
Spark Notes for Macbeth (summaries, thematic ideas)
No Fear Shakespeare (original text side-by-side with modern language translation)
Crime and Punishment in Elizabethan England
Gross/Gory Moments in Macbeth (written by a pathologist)