Imgur - Imgur is a free and simple image hosting service with image editing feature. Signup is optional.
Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
VirBELA - Remote communication and collaboration platform for online teams, classes, events and more.
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Remote Stories - Anonymous stories from remote workers
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.