• Gaming: Perl is often use to write tools to solve a variety of puzzles. Anagrams, for example.

• Retail: Too many web sites to list, including Amazon.

O'Reilly's Perl Success Stories list many others. The first three are:

• Healthcare: Perl Tackles HIPAA Compliancy at SUNY Upstate Medical University, Easy Healthcare Billing with Perl

• Library Arts: Findus Helps Finding Books in German Public Libraries