<http://schema.org/url>
<http://wow.joystiq.com/2008/02/21/whirligig-the-generation-jury-rigging-and-joys-of-the-gyrocop/>
<http://www.engadget.com/2008/02/21/whirligig-the-generation-jury-rigging-and-joys-of-the-gyrocop/>