All the magazines in Google books

One of the great, underused resources at Google are all the magazines that are scanned and put into the Google Books index.  In there you can find back issues of Life magazine--marvelous for getting a sense for what daily life was like between 1936 and 1972... check out this 1968 story about Georgia O'Keefe, complete with advertisements that ran in the magazine (such as the advertisement to eat more rice, from the Rice Council), or the fashions of the day:

But even better... Now you can look at the entire list of magazines available in Google Books.

Enjoy!