- http://docs.ansible.com/list_of_monitoring_modules.html
- https://www.datadoghq.com/
- http://www.zhihu.com/question/19973178
- http://www.programmer.com.cn/11477/
- http://blog.dataloop.io/2014/01/30/what-we-learnt-talking-to-60-companies-about-monitoring/
- http://graphite.wikidot.com/
- https://www.icinga.org/
- https://airbrake.io/
- http://bigpanda.io/
- http://newrelic.com/