Network Probe 

Network Probe is a network monitor and protocol analyzer
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NetPeeker 

Personal network monitor and controller, system and application level firewall, intelligent WHOIS trace back, network speed limiter, bandwidth priority, packet capture popup killer.
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DEKSI Network Monitor 

DEKSI Network Monitor is an advanced, powerful, and feature rich tool that monitors servers located on your LAN, WAN, and the Internet. Windows 9X, NT, 2000, XP, 2003 Server compatible and can monitor the servers with any operating system.
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Active Network Monitor 

Active Network Monitor is a tool for the day-to-day monitoring of computers in the network. Active Network Monitor runs under Windows NT/2000/XP and allows Systems Administrators to gather information from all the computers in the network.
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Atomic Watch 

Website Downtime = Lost Revenue Watch your website to ensure you minimize downtime and maximize uptime. If your website is down, search engines may remove your site, partners may remove links to your site, ensure your site is up at all times.
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VisualPulse Web Edition 

VisualPulse enables 24x7 Web-based monitoring of Web pages, servers and network nodes, reporting Ping, HTTP, SNMP, and TCP performance and easy-access Web-based reports. Provides automated alerts and traceroute capture for problem analysis.
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