J.K. Rowling presents Pottermore: a unique and free-to-use website which builds an exciting online experience around the reading of the Harry Potter books.

Pottermore is a website focusing on the unknown parts of the Harry Potter books 1-7 and re-telling the story in an interactive way. The author, J. K. Rowling, partnered with Sony[4] to develop the site. The site features Rowling's thoughts, several pages of unpublished text, and a sales resource for e-book and audiobook versions of the seven Harry Potter novels.

On July 31, 2011, registration for the limited beta release began. The limited release allowed the first million fans registered to complete The Magical Quill challenge. The original registration was intended to be October, 2011, but was extended to April 14, 2012. Currently, the online books are only available for Harry Potter and the Philosopher's Stone, Harry Potter and the Chamber of Secrets and the first fifteen chapters of Harry Potter and the Prisoner of Azkaban. Sony and J.K. Rowling continue to develop the rest of the series to complete the online experience for the fans.