You should get
The Whole Soy Story: The Dark Side of America's Favorite Health Food by Kaayla T. Daniel
http://www.amazon.com/Whole-Soy-Story-Americas-Favorite/dp/0967089751/ref=pd_bbs_sr_1?ie=UTF8&s=books&qid=1203476751&sr=8-1I have a copy and it really helps in convincing soy die hards (like many of my female clients/patients) to take another look at their favorite food supplement.
Just explaining them why just doesn't cut it for most over here, they want to read proof.
This book has about 30 pages with only references to research on the things written in there.
Soy is also bad for women by the way, not just for men like you say on your website
Only asians and menopausal women seem to profit from soy.
Even Asians combine soy products with other proteins (chicken/fish) in their meals and their daily intake of soy is about 30-35gr (in Japan, which is the biggest consumer of soy)
Only in the western society it is normal to have a 100% soy meal and to find soy burgers etc.
Anyway, get the book, $20 is a steal for 480 pages of info on it and it really helps your explanation