<http://schema.org/about>
"A postcard can brighten up your normal mail, but then it just sits there, commonplace and static. That's why  A Studio for Design  developed the Postcarden, \"created to be more playful, curious and interactive. It encourages you to bond, live and grow"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/sustainable-product-design/postcarden-postcard-grows-into-mini-garden.html>