Learn how to fix the web – by using the example of fixing MySpace – using Greasemonkey and other fun Firefox tools.
I can’t say I have ever heard of Greasemonkey before, and this is the most excellent introduction I can imagine having.
The guy who is (quickly) introducing you to it and how to use it is charismatic as well as good at packing all the needed information in such a small time slot. I actually feel like I know enough to download the program and go experiment a bit.
Greasemonkey and the apparent ease of using it is just one more form of proof that Firefox is awesome.