Banned vs. Challenged: The American Library Association description of banning and challenging process
Annual ALA list of Banned Books: A list of the top ten banned and challenged books from the previous year.
Frequently Challenged Children's Books: A list from the ALA's Office for Intellectual Freedom (OIF) on libraries, schools, and the media attempting to ban books in communities across the country.
The Freedom to Read Foundation is a nonprofit legal and educational organization founded in 1969 to promote and protect the freedom of speech and the freedom of the press; to protect the public's right of access to information and materials stored in the nation's libraries; to safeguard libraries' right to disseminate all materials contained in their collections; and support libraries and librarians in their defense of First Amendment rights by supplying them with legal counsel or the means to secure it.