Thanks to a tweet from Elizabeth Kerri Mahon of the blog Scandalous Women, I've learned that LIFE Magazine's archives are now available at Google. It appears that just about everything has been scanned, and you can see/read it all for free.
To test it out, I did a search on "Princess Grace" and came up with plenty of results about the movie star who became a princess of Monaco, including this (randomly chosen) 1956 article "Preparing to be a princess." Awesome!
Oh that IS awesome! Thanks for sharing!