Here are a couple of articles that I thought were interesting:

http://www.foodrevolution.org/what_about_soy.htm (for some reason this won't link, you'll have to type it in)
http://www.naturalnews.com/022630_soy_food_health.html

I do need to admit, I do drink a little organic soy milk with my my morning tea. But I am sure one day I will give that up as well. Stick with fermented soy, such as: tempeh, miso, tamairi (fermented soy sauce), fermented tofu and soy milk. I will also admit, that excluding soy products, has not been easy (especially for a vegan). I just deal with it and keep going. :)