https://www.nagios.org/ ( Open Source )
http://www.whatap.io ( SaaS )
opinions for whatap ( http://archmond.net/?p=3609 )
Related Posts
[scrap]Does Monitoring Still Suck?
http://java.dzone.com/articles/does-monitoring-still-suck?mz=110215-high-perf&utm_content=buffer...[link] AngularJS file upload DEMO
https://blueimp.github.io/jQuery-File-Upload/angularjs.html