panzerguy, there's actually a great little book out there called "Red Army Uniforms of WWII in Colour Photographs" by Anton Shalito, Ilya Savchenkov & Andrew Mollo. The ISBN number is 1-872004-59-8. It's pretty pricey on half.com, but perhaps you can find it elsewhere? I have a copy, and it's just an ultimate reference on Russian uniforms.
Sorry though, I don't have any websites.