Scholastic, the publisher of the Wings of Fire books, has done a wonderful website for the series. Visit it here.
Check out the Pet Trouble website for more information about that series of books (ages 8-13, from Scholastic).
Travel back in time to the website for the Little House books for all sorts of fun and useful information.
Warriors fans! I’m sure you’ve already been there, but just in case, here’s a link to the fabulous official site!
And finally, have you visited the bears of Seekers?