i LOVE this. man impressed. you have any idea how useful this might prove?!... well of course you do, but seriously, thanks for sharing this - useful indeed.
Really nice tool !.
I'm going to try it and see how it works.
Thanks for the info ;-)
Thanks for pointing this out! This makes it much easier to debug HTTPS problems (for which a packet sniffer is nearly useless).
http://livehttpheaders.mozdev.org/ does something similar for Mozilla.
I came across IEHttpHeaders a while back, but found it's feature set somewhat lacking for my purposes. Now I use Fiddler (http://www.fiddlertool.com), another free and more featured HTTP debugger.
I use Fiddler constantly at work. It's fantastic.
Proxomitron works quite well, too.
HTTPWatch is much better !
Take a look at http://www.simtec.ltd.uk/
You might also check out the tools at Dartware. www.dartware.com - there products are used heavily within the college environments. Good network monitoring with cross platform support.