Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
New York Times Morning Briefing - Wake up with The Times, anywhere in the world.
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.
Bookful - Bringing books to life with AR
CircleCI - CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.