Logwatch - Logwatch is a customizable log analysis system.

Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.

Growl for Windows - Growl for Windows is a Windows-compatible version of https://alternativeto.

Platypus - Realtime server monitoring and reporting

Log Parser Lizard - Download this ETL log parser for automated SQL querying any text based data or system logs like Web Server logs, Windows System Events and application log files.

Nagios - Complete monitoring and alerting for servers, switches, applications, and services