Pottermore is a website focusing on the unknown parts of the Harry Potter series and re-telling the story in an interactive way. The author, J.K. Rowling, partnered with Sony 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 The site features Rowling's thoughts, several pages of unpublished text, and a sales resource for e-book and audiobook versions of the seven Harry Potter novels.On 31 July 2011, registration for the limited beta release began.