Event Log Explorer - Windows event log viewer software. Windows event log analysis, view and monitor security, system, and other logs on Windows servers and workstations
ServerSuit - ServerSuit is a browser based program that enables remote Linux administration, monitoring, website hosting, and server setup automation.
MyEventViewer - MyEventViewer is a simple alternative to the standard event viewer of Windows.
RedGate SQL Monitor - SQL Monitor helps you and your team find issues – before they become problems
Event Log Observer - View, analyze and monitor events recorded in Microsoft Windows event logs with Event Log Observer, a powerful software tool that helps you find and analyze security warnings, problems and any other events that occur within Windows operating system.
Nagios - Complete monitoring and alerting for servers, switches, applications, and services