The Official Harry Potter Website: With merchandise, upcoming events, 10 different languages, and tons of other information.
The Harry Potter Fanclub has awesome games, cool rumors, and great wallpaper. Some games are hard, though. Pesky Pixies is way harder than Rouge Bludgers. Some advice on Pesky Pixies: Go down to the bottom row. It is easier.
Behind The Books: A Closer Look at John Bellairs is a Thinkquest website that was the best in Massachusetts in 2002. It was made by Lawrence's brother and Geoffrey's brother, plus some of their friends. It is about John Bellairs, a local writer who wrote about wizards, witches, and warlocks. They are awesome books!
J.K. Rowling is a cool website that has links to websites for Harry Potter in EVERY LANGUAGE! It even has some languages that I have never heard of!
The Magic of Witches: A Journey Through Time: This is a website made by my friends. It is really cool, and we were in it until the rules changed, and we had to start a new group.