A1Monitor Network Monitor TCP or Web 

Monitor multiple web or TCP servers (http, https, ftp, pop3 etc.) Receive email notification by email or pager if any can't be reached a number of times in a row
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ServerSweep Professional 

ServerSweep Professional has been designed from the ground up by experienced Microsoft Windows NT / 2000 Server support engineers and consultants to provide the very best in Microsoft Server Monitoring.
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MonitorMagic - Server & Network Monitoring 

Pro-active hardware, operating system, application and SNMP monitoring and alerting software for Windows Server systems.
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Monitor one 

A comprehensive, all-in-one and graphical all-in-one network monitoring software for network uptime and health monitoring. Provides sophisticated features for real-time monitoring and graphing using SNMP, trending, logging and long term analysis.
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CleverEye 

Clear, simple, and effective web based tool for availability control and response time monitoring. (This can be standalone or accompany Sysload or other tools)CleverEye suite allows you to monitor availability and response time of any application.
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Site Monitor Enterprise 

Web Site Monitoring Service. Software for subscription based web site monitoring service providers. We offer turnkey solutions to get you started in a profitable subscription based web site monitoring service business.
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