I think you have done a great job with the page, and I learned a lot from reading it and the other comments posted above.  I like that you were able to make use of some of the information we covered in class specifically related to this topic, but were also able to include plenty of outside resources.  Many of the concerns I had have been addressed in prior comments, but there is one section that I find slightly unclear.  It may just be the way I am reading your wording, but I figure there is always a chance that someone else will take it the same way and have the same question I do...  In the toxicology studies section, I think your intention is to say that because the mouse study used very high doses of the protein and proteins that will be toxic are usually toxic at very low doses, evidence supports that the Bt toxin is not toxic to mammals.  
what I initially read, however, was just the phrase "Research on other known toxic proteins suggests that proteins are usually toxic at low doses, further suggesting that Bt toxins are not toxic to mammals" which confused me by making it sound like the toxins are almost always toxic at low doses and that the Bt toxin might not be safe.  Perhaps changing this wording would help clarify your meaning for future readers?  Just a thought.  Overall, great job!