Other
The Harry Potter Lexicon
An amazing collection of information, background, and minutiae having to do with the Harry Potter series, including maps and a timeline. There's also an essay section.
Varsity Tutors
Varsity Tutors: Web English Teacher: J. K. Rowling
This teacher guide for J. K. Rowling and her Harry Potter books includes links to a biographical information, lesson plans, and activities.
Scholastic
Scholastic: Harry Potter and the Prisoner of Azkaban
Check out this site to learn more about the story "Harry Potter and the Prisoner of Azkaban," by J.K. Rowling.
Other
Nancy Polette: "Harry Potter and the Prisoner of Azkaban" Literature Guide
Discover the world of "Harry Potter and the Prisoner of Azkaban." This site is filled with interactive technology activities.