Links
www.novelguide.com for guides to most GCSE novels and some plays. Really useful - a lot of stuff here comes from it!
Royal Shakespeare Company has guides to ALL the plays!
Shakespeare's Globe can take you on a virtual tour of Shakespeare's theatre (you may need to download plugins for this) and has background on some of the plays.
GCSE Bitesize has interactive revision exercises. A really nice site.
Universal teacher is a huge site set up by the late Andrew Moore. If you study it - it's there!
Shakespeare plays in newspaper form!
Suggest a link!