I just discovered this today through a book review I am working on! You can go to Google Books and type in a magazine or book and provided it has been scanned you can view it online in High Definition scans!
Here are a couple of my favorites I came across:
The Good Housekeeping Illustrated Cookbook: America’s Bestselling Step-By Cookbook c.1989
I think everyone should know about this! This would be a great utility for research papers for teens in school!