DevOps: Application and Device Monitoring Platforms

Bosun: http://bosun.org/
Kamon: http://kamon.io/
New Relic: http://newrelic.com/
AWS Cloud Watch: https://aws.amazon.com/cloudwatch/
Nagios: https://www.nagios.org/
Splunk: http://www.splunk.com/
Server Density: https://www.serverdensity.com/
Loggly: https://www.loggly.com/
Logrhythm: https://logrhythm.com/
Takipi: https://www.takipi.com/
Sematext SPM: https://www.sematext.com
Sematext Logscene: https://www.sematext.com/logsene/
AppDynamics: https://www.appdynamics.com/