Warner Bros. Entertainment Inc. v. RDR Books York trial attorney, David Hammer. Ms. Hasse then asked a group of intellectual property lawyers at Stanford Law School to help defend RDR Books' right to publish. Fair Use Project Executive Director Anthony Falzone said the Lexicon is protected by U.S. law which has long given people "the right to create reference guides that discuss literary works, comment on them and make them more accessible." On 16 January 2008, Rowling and Warner Bros. filed their full 1,100 page complaint against RDR Books, claiming that the book compiles and repackages Ms. Rowling's fictional facts derived wholesale from the Harry Potter works
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