Computers & Internet Books At Amazon

Practical mod_perl
  By Stas Bekman, Eric Cholet
  May 2003
  ISBN: 0-596-00227-0

Embedding Perl in HTML with Mason
  By Dave Rolsky, Ken Williams
  May 2003

Perl 5 By Example
  By David Medinets

Teach Yourself Perl 5 in 21 days
  By David Till  

The Perl CD BookShelf (Published by O'Reilly)
  Includes: Perl in a Nutshell, Learning Perl, Learning Perl on Win32 Systems, Programming Perl, Advanced Perl Programming, Perl Cookbook 

Practical PostgreSQL
  By Command Prompt, Inc.

Essential XML Quick Reference: A Programmer's Reference to XML, XPath, XSLT, XML Schema, SOAP, and More (Download the free PDF file)
  By Aaron Skonnard & Martin Gudgin

O'Reilly's CD Bookshelf
  Includes: Java, Perl, Networking, Unix, Web Developer's Library, Oracle PL/SQL, Linux Web Server  

Various Free Computer Books, Tutorials & Lecture Notes