1. A summary of the whole play with full text, organized by scene
2. Another scene-by-scene summary, from shakespeare-online.com
3. A list of all the characters in the play, with brief notes about each, from absolute shakespeare
4. Detailed scene-by-scene summary, background information, and lots of photographs of different actors and of artists' interpretations of characters, here
5. I think it's so cool that the complete works of Shakespeare are available, of all places, on the M.I.T. web site
6. Finally, for you trekkies, the Klingon Hamlet
