PingInfoView - PingInfoView is a small utility that allows you to easily ping multiple host names and IP addresses, and watch the result in one table.
Ping Meter Gadget - Customizable, graphical, semi-transparent ping (latency) meter.
SmokePing - Smokeping is a tool for measuring latency.
PingDoctor - PingDoctor is software that is considered to be the most powerful and easiest to use network route analyzer.
PingPlotter - PingPlotter is a troubleshooting tool that helps IT professionals and neophytes identify, diagnose, and resolve network issues.
Open Nettest - Open Nettest is a platform for collecting, processing and visualizing data related QoS and QoE.