<http://schema.org/description>
"Google has announced that YouTube is now at 1 billion monthly users. Assuming Wolfram Alpha's estimate of 6.79 billion people on Earth, that means roughly 14.7% of the world watches ..."^^<http://www.w3.org/2001/XMLSchema#string>
<http://thenextweb.com/google/2013/03/21/youtube-reaches-1-billion-unique-monthly-users-almost-15-of-planet-earth/?awesm=tnw.to_h0d0r>