Below are links covering information about banned books and other banned materials
Banned Books OnlinefromThe Online Books Page at the University of Pennsylvania Libraries.
The Most Frequently Banned Books from the American Library Association.
Banned Books Week from the American Library Association. Covers information about why books are challenged and how to report a challenge.
The File Room Censorship ArchiveThe File Room focuses on censorship cases worldwide. "Despite the impossible nature of attempting to define censorship, The File Room is a project that proposes to address it, providing a tool for discussing and coming to terms with cultural censorship."