CGI::Application Best Practices

Best Practices for Perl-based web development

Paging data between Multiple Screens of Data - options available to page between multiple screens of data ( next / previous page / jump to page X / etc)
Template and Project Directory Structure - numerous ways of structuring templates for multiple modules as well as a whole project-wide directory structure
Setting Values in a Select (Drop Down) Box - options, examples and suggestions on how to dynamically set the values in select boxes (also covers some more advanced form population techniques).

IYHO, what do you consider good code? - perlmonks.org thread on good coding practices
Perl Programming guidelines/rules - lengthy, much debated perlmonks.org thread on general rules and guidelines for perl programmers
Five Lessons Open Source Developers Should Learn from Extreme Programming - onlamp.com article

Mark Stosberg says: This is the most useful book I have read so far on software development. It hardly mentions Perl, but it doesn't matter– This wisdom is not language specific.

Steve Comrie says: This is the most useful book on programming that I've read since Code Complete. Great concepts and ideas on all topics through-out the project life-cycle

The Perl Design Patterns website
Portland Pattern Repository - the original wiki, with patterns in Software Development.