The CGI Resource Index: Documentation: Programming in Perl
- Tips, instructions and tutorials on scripting CGI in Perl.
- http://cgi.resourceindex.com/Documentation/Programming_Languages/Programming_in_Perl/

CGI Environment Variables
- A detailed listing of common, useful CGI environment variables under Apache 2, and examples of how to use them.
- http://jon.hedley.net/cgi-environment-variables

CGI Programming MetaFAQ
- Directory listing of FAQs about CGI programming.
- http://brian-d-foy.cvs.sourceforge.net/*checkout*/brian-d-foy/CGI_MetaFAQ/CGI_MetaFAQ.html

CGI Security
- Links to several articles on the topic of CGI security issues.
- http://httpd.apache.org/docs/1.3/misc/security_tips.html

CGI Programming with Perl, 2nd Edition
- Completely rewritten to demonstrate current techniques available with the CGI.pm module and the latest versions of Perl. Topics include incorporating JavaScript for form validation, controlling browser caching, making CGI scripts secure in Perl, working w
- http://www.oreilly.com/catalog/cgi2/

WWW Security FAQ - CGI scripting
- Tips for avoiding common security holes when writing CGI scripts
- http://www.w3.org/Security/Faq/wwwsf4.html#Q36

CGI Programming FAQ
- Frequently asked questions about CGI programming
- http://www.webthing.com/tutorials/cgifaq.html

Web Developers Virtual Library
- CGI, the common gateway interface for server-side processing.
- http://wdvl.com/Authoring/CGI/

How Stuff Works: CGI Scripting
- Tutorial that describes how to add CGI scripting to a web site.
- http://www.howstuffworks.com/cgi.htm

Common Gateway Interface
- The specification of the standard for interfacing external applications with web servers. By NCSA.
- http://hoohoo.ncsa.uiuc.edu/cgi/