An in-depth but introductory look at internet content filtering, rating, and labeling by Computer Professionals for Social Responsibility (CPSR).

A comprehensive study and report on the effectiveness of internet filtering software performed in 1997 by librarian and author Karen Schneider.

Referenced report on Internet filtering software and rating systems by Jonathon Weinberg.

A report from the National Research Council which discusses various social and educational issues of Internet control.

Summary, court opinions, and other material concerning the first legal challenge to the use of censorware in public libraries.

Information from the U.S. Public Library Association.

A tutorial with different ways to beat the filtering in schools, countries or companies.

Offers ad blocking information, articles, resources, and free detection script.