Instead of listing my favourite modules, I'll mention the modules I'd like to become more familiar with or I'd like to study. In a sense, this should be my Favourite modules March 2005 :). In no particular order:

• POE
• Parse::RecDescent
• CGI::Application::ValidateRM
• Test::* (and, mainly, the techniques to correctly test code)
• Class::DBI
• WWW::Mechanize
• Maypole
• SPOPS, Alzabo... (probably is better doing some research considering even different tools first)