Did you try it and it didn't work for you? I've tried it on a couple different browsers and different Arduinos, and the process of sending data to the browser has always been a snap. Really a 2-minute set-up from start to finish. And it works on any computers, such as a school lab computer: no need to install drivers or anything.
You can try out the stand-alone example as well: Arduino Ethernet Values (stand-alone) - JSFiddle - Code Playground
I think with some further expansion on that demo (reporting info from the digital pins, for instance), it would make a great workbench for experimenting with the Arduino.