SkipoleMonitor is available at http://code.google.com/p/skipole-monitor/

Version 0.2 now released, this version adds the option to automatically send
email alerts should the status of any monitored host change.

What is SkipoleMonitor?
=================

SkipoleMonitor is a free network monitor for Windows and Linux. On running
the program, a GUI window appears, and hosts can be added, which Skipole
Monitor will regularly ping, showing the results via a built-in Web server.
Hosts can be grouped, so the Web server will show group symbols that the
viewer can open to inspect the hosts, or further sub-groups, within.

License : GPL