Popular Science magazine, has scanned its entire 137-year archive and put it online.
The archive is made available in partnership with Google Books. I did a few searches this morning – ham radio related searches (like the March 1932 edition above) and there’s some really great vintage articles in the archives. Definitely worth a look.
“We've partnered with Google to offer our entire 137-year archive for free browsing. Each issue appears just as it did at its original time of publication, complete with period advertisements. It's an amazing resource that beautifully encapsulates our ongoing fascination with the future, and science and technology's incredible potential to improve our lives. We hope you enjoy it as much as we do.”
It also works on the iPhone and iTouch.
Here’s the link: