I have compiled a list of links below to what, I feel are good Harry Potter sites, As far as I am aware none have adult content.

harrypotter.com Official movie site.
J.K. Rowling J K Rowlings official site, contains a lot of background info on the books, and provides answers to a lot of silly theories.
Bloomsbury British publisher.
Scholastic American publisher.

Proud purveyors of pottery buttons!she was also nice enough to display some of my work on her site. Don't think its been updated in a while.
My favourite Harry Potter Fanart site, I especially like her picture of Neville and the pencil drawings of Tonks.The artist has also very kindly given me permission to use her artwork in wallpapers.
Another very good source of Harry Potter fanart!This artist has also very kindly given me permission to use their graphics.
A fantastic fanart site, I especially love the comic drawings of Lucius and Narcissa Malfoy! The artist has also very kindly given me permission to use her artwork in wallpapers. Makani rocks!
Advanced Potions Another great fanart site!, And a big thanks as they've also given me permission to use their work for Wallpapers!
Canon Artists for Harry Potter An Archive for Canon Fanart sites - handy as it saves you from sifting out genuine art from slash etc.

In their own words - the ultimate Harry Potter site. They have received a fansite award from JK Rowling, and have very good forums, chatrooms etc.
Get the Lumos Font! Home of the Lumos and Parseltongue fonts, both essential to any Harry Potter button maker!
Bewitched, Bothered, Bewildered A friends blog, worth a look (not HP related)

To link to me using the following button please use the code provided.

If you would like me to link you, please send me your url and preferably a button 120x40 - If you do not have a button this size I am willing to make one for you. I will not link to sites featuring adult content or slash!