J.K. Rowling: Official site about the author and the Harry Potter books. Includes book rumours, biography, movie information, FAQs, news, and links

MuggleNet: News, games, and humor. Over 70 sections with information on the books and the movie, puzzles, message boards, and trivia

Scholastic Books - Harry Potter: Discussion guides for all books, including sample chapters, plus an interview with J.K. Rowling, excerpts from reviews, games and screensavers