The author of this article seems very clear on the types of inhale and exhale a lady can do, along with photos demonstrating what the author is trying to say. The notes are peppered with 'you will die if you do this' disclaimers, which are of course unsubstantiated. I personally prefer the direct inhale, and my breathing is not a problem.
I think this IS the storied smoking by Denise content! I had read the whole website a zillion times before it vanished and remember much of the content, verbatim, and the contents. Wow what a blast from the past!
SBD still exists, though it's no longer a web site. Partial impressions of the original site do exist on the internet archive, but they're spotty at best.
Back in 2005/6 I embarked on a reconstruction which I released in PDF format.
SBD had it's 15th Anniversary last year. I've been keeping it up to date, as much as I can, but a Classic Edition also exists, which is essentially unexpanded and unenhanced.
In a similar vein, D.R. Humo's - The World of Smoking Glamour is something else I've preserved for posterity. That and a whole heap of Smoking Fetish fiction, as well as a few other smoking-related odds and ends that were languishing in obscurity in the dark and dusty corners of the interwebs.
I found a link to this thread by chance while googling, so I took the plunge and registered to let folks know it's not lost.