craigslist > about > thanks
  • Linux - open source operating system

  • Apache - open source web server

  • mySQL - open source SQL data store

  • Perl - most craigslist software is written in Perl

  • GNU - emacs, gcc, bash, the very concept of free software

  • Haraka and Postfix -  email servers

  • Redis - open source key-value store

  • MongoDB - open source NoSQL database

  • Git - open source version control

  • Mozilla - Firefox, bugzilla, etc

  • Pine - email client, "it works"

  • Wikipedia - the world's encyclopedia, "we link to thee"

  • EFF - watching over our rights in the electronic world

  • WELL - inspiration from an online community pioneer

  • OpenStreetMap - creates free geographic data for the world