Muggle Pride - Features news, rumours, fan works, quizes, downloads, information on the author, and book resources.
MuggleNet - News, games, and humor. Over 70 sections with information on the books and the movie, puzzles, message boards, and trivia.
Muggles for Harry Potter - Organization to support kids, parents and teachers who are fighting school officials and others who want to ban classroom "read alouds" of Potter books and other controversial works, remove the books from library shelves, and otherwise restrict their use.
Nature, Romanticism, and Harry Potter - Scholarly analysis of the Harry Potter books, stating that J.K. Rowling has put together, often beautifully, the opposites that are central to romanticism -- the strange and the ordinary.
Nimbus 2003 - Symposium presented by Harry Potter for Grown Ups and other groups to discuss the books with scholars and other fans. Includes registration form, travel information, forum, mailing list, and call for papers.
Owlpost - Free @owlpost.i-p.com e-mail for every Harry Potter fan.
Pronunciation Table - Lists of Harry Potter -words and their correct pronunciations in text and wav-format.
Harry Potter for Muggles - A comprehensive list of the characters, presentation of Hogwarts and Quidditch, a list of some of the publishers and titles of the books in different countries, cast and crew of the movie and a piece of fan fiction.
The Pheonix Feather - Fan fiction, mistakes in the movie and books, and information on the Harry Potter series.
Potter Storm - News and rumors, commentary, and general information about the Potter universe.
Realm of Harry Potter - Contains news, book summaries, character information, pictures, fan art and fiction, chat and forum, various activities.
Rowling's Magic - Lists of the spells and the book titles in the books and a little RPG.
sorting-hat.com - A fan site that will test your knowledge of all that is Potter.
Tealin's Harry Potter Headquarters - Includes original artwork, dreams submitted by fans, a defence of Harry Potter against those who say it's evil, and an area devoted to Moony, Wormtail, Padfoot and Prongs.