Spotify - Map shows when two people play same song at same time
Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
SoundCloud - Enjoy music & follow favourite artists
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Last.fm - The world's largest online music service. Listen online, find out more about your favourite artists, and get music recommendations, only at Last.fm
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.