Legal disputes over the Harry Potter series October 2007, Warner Bros. and Rowling sued Michigan-based publishing firm RDR Books to block the publication of a 400-page book version of the Harry Potter Lexicon, an online reference guide to her work. Rowling, who previously had a good relationship with Lexicon owner Steve Vander Ark, reiterated on her website that she plans to write a "Harry Potter" encyclopedia, and that the publication of a similar book before her own would hurt the proceeds of the official encyclopedia, which she plans to give to charity. A judge later barred publication of the book in any form until the case was
The Leaky Cauldron (website) forum currently has over 120,000 registered members. The Leaky Cauldron was also part of the "Floo Network", a collection of Harry Potter sites that also included "The Harry Potter Lexicon". The Leaky Cauldron withdrew financial support from the Lexicon and disbanded the Floo Network in 2007 following the legal action pursued by JK Rowling against its creator and webmaster, Steve Vander Ark. The site is also known for the April Fools' Day jokes that it pulls annually. In 2003, Leaky posted a copy of 93 words allegedly emailed to the site, in reference to a 93-word card auctioned off the