Here's the original vision statement by Chris Avellone used to pitch Torment to the Interplay management for development back in 1997:
http://www.box.net/shared/0tg00e8tm5
Included is a first draft of the Ravel dialogue brief, as well as the final version for comparison.

Thanks to RPGWatch – Tales of Torment interview for this intriguing insight:
part1 - http://www.rpgwatch.com/show/article?articleid=55&ref=0&id=208
part 2 - http://rpgwatch.com/show/article?articleid=56&ref=0&id=208

Planescape Torment retrospective from RPS:
http://www.rockpapershotgun.com/2007/09/25/retrospective-planescape-torment/

The Making of Torment Audio:
http://www.bootstrike.com/Torment/Online/torment_audio.html

History of the Nameless One:
http://www.bootstrike.com/Torment/Online/tti4.html

and other cool stuff:
http://www.bootstrike.com/Torment/cool.html

Nice, thanks for the links! That vision statement is awesome : ).
Will get through the rest of the stuff too.

A warning just in case - most of that stuff features SPOILERS - some of them big ones! All you new players, tread carefully!

Ha yes, those are nice links ! I saved'em and added them to my already huge Planescape file =) Love that game, and even outside it, can you still find some new insights about it...

hello check this :) it's just another little story from planescape. And it have some kind of map too.

http://www.wizards.com/default.asp?x=dnd/dnd/20031113a

it will take only a few minutes to read. ( have a pause at work )

@Dominus and maato:

Thanks!

Where is that giant Annah statue found? Since it's an easter egg, I assume it's hidden. It's just that it's vaguely familiar to me but I last completed Torment so long ago I can't remember if I found it or not.