I will add in links for books here that I find useful.

• CGI Programming with Perl
• Dynamic HTML: The Definitive Reference (2nd Edition)
  I consider this in indespensible reference!
• JavaScript: The Definitive Guide
• Learning Perl
• Learning Unix for Mac OS X Panther
• Mac OS X Panther for Unix Geeks
  Great book. Highly recommended.
• Mastering Regular Expressions, Second Edition
• Perl Cookbook, Second Edition
• Programming Perl