Rowling to release unpublished 'Harry Potter' material online

Previously unpublished 'Harry Potter' material will be released on a new website in a move described by author JK Rowling as a "give-back" to her millions of fans.

Details about some of the famous characters in the series and an in-depth explanation of Quidditch - the fictional sport played by the student wizards in the best-selling books - are promised.