Fast.com - Quickly test your internet speed with this fast-loading speed test powered by Netflix.
Speedtest by Ookla - Measure your ISP's performance in a click
Speediness - Quickly check your internet connection speed.
Global Website Speed Test - Test website load speed from 18 cities, including 3 in China
Meteor - Meteor is a set of new technologies for building top-quality web apps in a fraction of the time.
Speedy - Speedy lets you perform fast, private and real-world accurate speedtests directly from your Menubar through Apple's servers.