LaTeX.org

Yes, compiling 300 or 400+ pages of specs for a project in Word and making sure all of the formatting and whatnot comes out correctly is a pain, to say the least. And, since not everyone that writes specs actually knows how to use Word effectively, perhaps it would not be any more difficult to teach ...

I've also been interested in this and have not seen much about it, though it seems like a perfect application for LaTeX. One issue for me in implementing it though is that others in my department have to work on the specs and I'm afraid I would get resistance because it doesn't work in a common word ...