LIFE and Google have teamed together to create an archive of millions of LIFE images stretching from the 1750s to modern times:

http://images.google.com/hosted/life

The images are stored at remarkably high resolution and most were never published.

It really is a pretty astounding archive.

On the other hand, it looks like LIFE will be creating some sort of archive of their own here:

http://www.life.com/Life

Perhaps the two will be merged someday…