marketingsherpa has a case study on how to get print subscription via archive and search
'How Scientific American Grows Print Subs 15 %
What if you’re a magazine with a stately reputation, but your print subs are dropping and your online efforts are drying up?
If your content is archive-worthy, you may want to see how one publisher turned things around by testing another channel. Plus, how offering PDF versions of single issues became a fruitful effort.
Free access until 23-July-2006 (later via Shop)