Speedtest.net - Test your Internet connection bandwidth to locations around the world with this interactive broadband speed test from Ookla
NetSpeedMonitor - NetSpeedMonitor is a lightweight Network Monitoring Toolbar for your Windows Taskbar
Testmy.net - Accurately test your Internet connection speed with this powerful broadband speed test. Improve your bandwidth speed with the truth.
TrafficMonitor - TrafficMonitor is a network monitoring suspension window software in Windows.
OpenSpeedTest - Broadband Internet Speed Test Unlocked!
Network Lights - Network Lights is a Windows program, which blinks keyboard LEDs (Light Emitting Diode) indicating outgoing and incoming network packets on network interface.