GoCD (https://gocd.io) - Chat room for Contributors. See http://bit.ly/1mAA3RV Q&As.
PHPCI is a free and open source continuous integration tool specifically designed for PHP.
Plug and play continuous integration with django and jenkins
Continuous Integration - https://github.com/kirchbergerknorr/ci
A quick Travis CI (Continuous Integration) Tutorial for Node.js developers
Distributed scalable continuous integration service with docker
Drone is a Continuous Integration platform built on Docker, written in Go
This contains the files necessary to run Continuous Integration on batlab.org
CodeSwarm is a Node.js based Continuous Integration system