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
Harry Potter fandom of "Deathly Hallows", much of the energy of the Potter fandom was devoted to speculation and debate about upcoming plot and character developments. To this end, clues from the earlier books and deliberate hints from J. K. Rowling (in interviews and on her website) were heavily scrutinised by fans. In particular, fan essays were published on websites such as Mugglenet (the "world famous editorials"), the Harry Potter Lexicon and The Leaky Cauldron (Scribbulus project) among others: offering theories, comment and analysis on all aspects of the series. The Yahoo discussion list Harry Potter for Grown Ups (founded in 1999) is