Discussing copyright law and file-sharing over the years I’ve lost track of how many times students have asked “what about Limewire? Why does it still exist?” The answer has always been “because a court hasn’t shut it down yet.” While a court still hasn’t enjoined Limewire from operating, it took a giant step in that direction yesterday. Federal district court Judge Kimba Wood (why didn’t may parents name me Kimba?) granted various of the plaintiff record companies’ motions for summary judgment in their four-year old copyright infringement suit against Limewire, ruling they had induced users’ copyright infringement and engaged in vicarious copyright infringement, among other things. The court also held Limewire’s founder Mark Gorton personally liable, saying he “directed and benefited from many of the activities that gave rise to LW’s liability.” The 57-page opinion is here. And I have the first post-semester case to include in the 2010-2011 version of my Internet Law Casebook.