The American Library Association Banned Books Week Website
http://www.ala.org/bbooks/challeng.html
Created to ensure ìthe availability of those unorthodox or unpopular viewpoints to all who wish to read them.  Includes reasons why books are challenged, information about censors, and lists of frequently challenged books and authors.

Freedom to Read Week, Canada
http://www.freedomtoread.ca/index.htm
Sponsored by the Freedom of Expression Committee and the Book and Periodical Council

George Suttle : Censorship
http://www.georgesuttle.com/censorship/censors-all.shtml
A comprehensive list of censorship resources on the web, produced by GeorgeSuttle.com.

Little Sisters Book and Art Emporium Website
http://www.lsisters.com/
Contains numerous articles regarding the storeís struggle with Canada Customs

Pen Canada
http://www.pencanada.ca/
"The work of the National Affairs Committee of PEN Canada focuses on challenging legislation which violates the right to freedom of expression guaranteed in the Canadian Charter of Rights and Freedoms, protesting book bannings, book seizures and censorship."