CPSR Filtering FAQ  
   An in-depth but introductory look at internet content filtering, rating, and labeling by Computer Professionals for Social Responsibility (CPSR).
   http://www.cpsr.org/filters/faq.html

The Internet Filter Assessment Project  
   A comprehensive study and report on the effectiveness of internet filtering software performed in 1997 by librarian and author Karen Schneider.
   http://www.bluehighways.com/tifap/tifap.htm

Rating the Net  
   Referenced report on Internet filtering software and rating systems by Jonathon Weinberg.
   http://www.law.wayne.edu/weinberg/rating.htm

Youth, Pornography, and the Internet  
   A report from the National Research Council which discusses various social and educational issues of Internet control.
   http://www7.nationalacademies.org/cstb/pub_pornography.html

Mainstream Loudoun District Court case  
   Summary, court opinions, and other material concerning the first legal challenge to the use of censorware in public libraries.
   http://www.techlawjournal.com/courts/loudon/Default.htm

Plain Facts About Internet Filtering Software  
   Information from the U.S. Public Library Association.
   http://www.ala.org/ala/pla/plapubs/technotes/internetfiltering.htm

How To Bypass Internet Censorship  
   A tutorial with different ways to beat the filtering in schools, countries or companies.
   http://www.zensur.freerk.com/

Adblock.org  
   Offers ad blocking information, articles, resources, and free detection script.
   http://www.adblock.org/