FREE speed test. The only software that does an actual full Speed Test of your Internet connection. Forget the online speed tests, because Speed Test will do it all for you completely automatic 24 hours a day.
Bandwidth speed test meter and monitor. Testing your bandwidth with BBMonitor can be so easy and very efficient, recording your bandwidth test results in a database so you can create charts.
Emsa Bandwidth Monitor is a handy utility which allows monitoring your internet connection speed, total traffic, average download/upload speed,and more. Freeware.
Net.Medic is an internet diagnostic tool that helps to determine where the bottlenecks are between your PC and website you are trying to connect to.