There's quite a bit more to modules, references, objects, and web developing than we can possibly hope to cover in this one small chapter. A whole tutorial could be written on CGI developing. In fact, dozens have been. For your continued research into these matters, check out the following reference list:

CGI.pm documentation
The LWP library from CPAN (runs under Windows with a few modifications - see the documentation for more information)
CGI Developing on the World Wide Web (Shishir Gundavaram, 1996)
Web Client Developing with Perl (Clinton Wong, 1997)
HTML tutorial, Second version (Chuck Musciano & Bill Kennedy, 1997)
How to Set Up and Maintain a Web Site, Second version (Lincoln D. Stein, Addison-Wesley, 1996)
Nick Kew's CGI FAQ
Perl documentation: perltoot, perlref, perlmod, perlobj

Further Reading