A lot of information regarding ALL A.P. tests:
http://apcentral.collegeboard.com/apc/Controller.jpf
A Shakespearean/Elizabethan dictionary, with lots of other information:
http://www.william-shakespeare.info/william-shakespeare-dictionary.htm
A Shakespeare resource center:
http://www.bardweb.net/language.html
A Shakespearean Insult Kit; Just follow directions:
http://www.pangloss.com/seidel/shake_rule.html
An excellent source for Biblical passages, allusions, and more:
Free Classic Literature online:
More free books online: