<http://schema.org/thumbnailUrl>
<http://cdn1.tnwcdn.com/wp-content/blogs.dir/1/files/2012/05/chen-520x245.jpg>
<http://thenextweb.com/asia/2012/05/02/smothering-over-censorship-how-chinas-sina-weibo-is-getting-clever-with-sensitive-topics/>