<http://schema.org/mainEntityOfPage>
<http://www.engadget.com/2012/12/13/youtube-angry-birds-skype-top-apples-2012-app-store-chart/True>
<http://www.engadget.com/2012/12/13/youtube-angry-birds-skype-top-apples-2012-app-store-chart/?ncid=rss_semi>