* Documentation (Common Gateway Interface) Documentation
  http://hoohoo.ncsa.uiuc.edu/cgi/

  + Introduction to CGI scripts
    http://hoohoo.ncsa.uiuc.edu/cgi/intro.html

  + Primer to CGI scripts
    http://hoohoo.ncsa.uiuc.edu/cgi/primer.html

    CGI scripts pass information to the CGI programs via environmental
    variables.  Here are the variables:

    QUERY_STRING = anything which follows the first ? in the URL.
       This string is encoded in the standard URL format of changing
       spaces to +, and encoding special characters with %xx hexadecimal 
       encoding. You will need to decode it in order to use it. 

    PATH_INFO = The most useful example of PATH_INFO is transmitting
       file locations to the CGI program.  To illustrate this, let's say
       I have a CGI program on my server called /cgi-bin/foobar that can
       process files residing in the DocumentRoot of the server.  I need
       to be able to tell foobar which file to process.

    PATH_TRANSLATED = the actual path to the document.

    =====

    The most common error in beginners' CGI programs is not properly
    formatting the output so the server can understand it.

    CGI programs can return a myriad of document types. They can send
    back an image to the client, and HTML document, a plaintext document,
    or perhaps even an audio clip. They can also return references to
    other documents. The client must know what kind of document you're
    sending it so it can present it accordingly. In order for the client
    to know this, your CGI program must tell the server what type of
    document it is returning.



===========================================================================

* Perl CGI FAQ
  http://www.perl.com/pub/doc/FAQs/cgi/perl-cgi-faq.html

  Q2.4: What CGI modules are available for Perl 5? Which should
  I use, and why?
  CGI.* = These modules allow you to create and decode forms, debug
  your CGI programs and maintain state between forms.


===========================================================================

* Easy Intro to Using Perl Objects
  http://perl.com/perl/everything_to_know/easy_objects.html



===========================================================================

* Perl documentation

  + Perl 5 Module List
  http://www.perl.com/CPAN/modules/00modlist.long.html
  http://www.perl.com/CPAN/modules/index.html


  + Documentation for supporting functions
  http://www.cpan.org/doc/manual/html/pod/index.html
     perl, perlLoL, perlXStut, perlapio, perlbook, perlbot, perlcall,
     perldata, perldebug, perldelta, perldelta, perldiag, perldsc,
     perlembed, perlfaq, perlform, perlfunc, perlguts, perlhist, perlipc,
     perllocale, perlmod, perlmodinstall, perlmodlib, perlobj, perlop,
     perlpod, perlport, perlre, perlref, perlrun, perlsec, perlstyle,
     perlsub, perlsyn, perltie, perltoc, perltoot, perltrap, perlvar,
     perlxs,

  + Documentation for libraries, modules, and pragmas:
  http://www.cpan.org/doc/manual/html/lib/index.html
     many items listed here.

  + Documentation for utilities:
  http://www.cpan.org/doc/manual/html/utils/index.html
     c2ph, pstruct, diagnostics, h2ph, h2xs, perlbug, perlcc, perldoc,
     pl2pm, pod2html, pod2man, xsubpp,

  + Documentation for translators:
  http://www.cpan.org/doc/manual/html/x2p/index.html
     a2p, s2p

  + CPAN FAQ
    http://www.perl.com/CPAN/misc/cpan-faq.html