<http://schema.org/about>
"We love downloadable designs; they are harbingers of a future where we will download instructions into tools that will manufacture them in our homes, eliminating shipping and waste. We have discovered an entire website devoted to downloadable paper"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/clean-technology/downloading-designs-paperinside.html>