CPAN Modules

• Over 26,100 modules available
• Over 3,700 registered authors
• All Open Source
• Most with a standard installation procedure
  • perl Makefile.PL / CPAN.pm / CPANPLUS.pm
• Quality Control
  • Encouraged to write test plans for all distributions
  • CPAN Testers - automatic testing of every upload
  • CPANTS - "quality" measures
  • http://cpanratings.perl.org - like Amazon reviews