The first few IVU lecture notes are now online and more are expected to be put up in the near future. They can be found here:
http://www.ivu.org/congress/2008/ I would really recommend looking at the talk by Stephen Walsh "Vegetarian myths: Things everybody knows that aren't true". Lots of good information on B12, protien and soya. Also why the blood type diet and the China Study (which is often used to support veg*anism) are bollocks.