web server monitoring (2 products)

A1Monitor Network Monitor TCP or Web 6.1.70 (Shareware, $89.00)

Monitor multiple web or TCP servers

WebWatchBot 2.1.2 (Shareware, $199.95)

Monitoring and Analysis Software for Web Sites and IP Devices. Maximize availability through accurate, in-depth monitoring and alerting functionality. Analyze historical data for trends and visualize current state with real-time charting and graphs. 8 different monitoring types: Ping, HTTP, HTTPS, SMTP, POP3, FTP, Port, and DNS. Real-Time Charting of one or more watch items. Built-in reporting of historical data with scheduling ability.