My favorite programming language is Perl.
There's no Perl without CPAN. Below are some of my favorite CPAN modules:
  • Business::ISBN
  • DateTime
  • DBI (DBD::SQLite)
  • Encode
  • File::Copy
  • Getopt::Std
  • HTML::TreeBuilder
  • List::Util
  • LWP::Simple
  • LWP::UserAgent
  • Mime::Lite
  • MD5
  • Template Toolkit
  • Text::Capitalize
  • URI
  • WWW::Mechanize
  • XML::Parser
I enjoy reading Autrijus Tang's Perl 6 Journal everyday, although I can understand but little.