WORLD HISTORY & LIT: PBS William Shakespeare's "Macbeth" The play is online at PBS.org ( Patrick Stewart ) & Curriculum Guide, too. We also used the Macbeth study guide found in the ABEKA's English Literature teacher's manual- http://www.abeka.com/ABekaOnline/BookDescription.aspx?sbn=86029
THE TEMPEST Study Guide--includes nice one-page biography, one-page summary of the play, and lots of other goodies. This site also has free guides to Much Ado about Nothing, Romeo and Juliet, and Macbeth.
It's interesting to see the resources other theatre companies have develop to support Macbeth. This study guide was done by The Young Company (This is a unique partnership between Classic Stage Company and the graduate Theatre Arts Program at Columbia University’s School of the Arts. They make Shakespeare alive and accessible to students all over New York City through workshops in the schools and performances at their theatre.)