Firebug demo
If you're a serious web developers Firebug is a must have. Pity it's only available with Firefox, but hey worth the jump.
Its creator, Joe Hewitt has done a demo video of Firebug potential.
The video shows you the subtle features within:
- Highlighting the DOM that you know your Ajax call will eventually update, and see Firebug showing you what is updated
- The profiler at work: the difference between time spent only in that function, versus including recursive calls into other functions
- Tying into the profiler from your code
- Tips and tricks for the inspector, profiler, network, and more