I would like to share with you the following link to a website which has helped me out a lot in grandpa's WWII research.
It's maintained by a guy named Jonathan Gawne, who wrote a book I read entitled: Finding Your Father's War. His father was also in the 8th Infantry Division, and I believe in the 28th Regiment! Anyway this book is chock full of info on how the GI's lived and fought in the United states Army in the 1940's. I'd almost recommend it as a "bible" for WWII reenactors.
It contains color photos, charts and diagrams that explain the organization of divisions, battalions, regiments and companies in plain and easy to understand english. It also contains valuable information on how to go to the NARA research center and do your own investigative work.
I have personally corresponded with Mr. Gawne, and have joined an online E-mail webring on which historians, researchers and WWII buffs, and a handful of actual 8th Div. veterans actually post their insights and findings into this little-known army group and its accomplishments.
In fact, Mr Gawne has requested permission to reproduce some of Mel's color slides of boot camp and Western Europe in his newest book, the revised edition of Finding Father's War. I am so excited and can't wait to see my grandfather given the credit he always deserved!