Warner Bros. Entertainment Inc. v. RDR Books the market for reference works. According to Judge Patterson, even a copyright holder as eager as Rowling is to control through licensing all related markets must face limits. Warner Bros. Entertainment Inc. v. RDR Books Warner Bros. Entertainment, Inc. and J. K. Rowling v. RDR Books, 575 F.Supp.2d 513 (SDNY 2008) is a copyright lawsuit brought on 31 October 2007 by the media company Warner Bros. and "Harry Potter" author J. K. Rowling against RDR Books, an independent publishing company based in Muskegon, Michigan. Lawyers for Rowling and Time Warner argued that RDR's attempt to publish for profit a print
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