WSJ.Com: Running Over Fair Use Like The Hogwarts Express?:

“Warner and Rowling filed a lawsuit against RDR Books, a small publishing house in Michigan, over its plans to publish a print edition of The Harry Potter Lexicon website, a compendium of all things Harry that looks, well, rather daunting to neophytes like us. In December Stanford Law School’s Anthony Falzone — a former Bingham McCutchen litigator and the heir apparent to Lawrence Lessig’s Fair Use Project — agreed to help defend RDR Books against the suit.
Last month, Wu defended RDR in another Slate piece, writing, “There is a necessary and healthy line between what the initial author owns and what follow-on, or ’secondary,’ authors get to do, and Rowling is running over that line like the Hogwarts Express.”