<http://schema.org/about>
"Authentic Hatha yoga is already pretty minimalist. Spotted in The New York Times style section, a small group of yogins is taking it further--opting to sun salute on straight up floor rather than on their sticky"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/green-food/the-death-of-the-yoga-mat.html>