If you have been wondering how fast your Internet is then this speed test is what you need. The results above were not very accurate for me (I typically get 4000kbps for my download) but it displays a nice graphical speedometer for a little eye candy.
This is a pretty nice test but I am still a big fan of TestMy.net. It may not be as graphically pleasing as the one above but you get a lot more information (and more accurate). They also have a ton of people who do speed tests on their site so they are able to compare your Internet speed with the average speed for your ISP.