PingUin
An interactive ping utility.
An interactive monitoring utility that allows to watch the status of multiple servers including the hosting machine at once.
The most comprehensive, easy-to-use and visually impressive WPF-based network monitoring application that is completely open-source and modular.
Can be run as a windows service, acts as a server and allows remote HTTP management via browser, or can be run minimized, at background or from command line.
Generates impressive interactive charts, logs and statistics...