1)   Exploit Child Watchdog 2
The Child Watchdog helps you keep an eye on what your kids are doing on your PC

 2)   ServerObserver Network Monitor 4.1
ServerObserver Network Monitor can monitor various internet services, databases, Windows, and UNIX/LINUX systems. It informs you of error situations by sending an e-mail or SMS, etc. It lets you view the current status on the web.

 3)   ServerRadar Server Monitor 5.1.1.3
ServerRadar is a powerful and easy to use website monitoring software. It can monitoring your website, mail server, ftp server, Database server and DNS server. Immediate notification in the event of server errors and HTML reports are also available.