Microsoft IIS - Internet Information Services is a web server for Microsoft Windows
ServerSuit - ServerSuit is a browser based program that enables remote Linux administration, monitoring, website hosting, and server setup automation.
Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996
RedGate SQL Monitor - SQL Monitor helps you and your team find issues – before they become problems
Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
Nagios - Complete monitoring and alerting for servers, switches, applications, and services