New elements in HTML 5

Hypertext Markup Language (HTML) 5 introduces new elements to HTML for the first time since the last millennium. New structural elements include aside, figure, and section. New inline elements include time, meter, and progress. New embedding elements include video and audio. New interactive elements include details, datagrid, and command.

http://www.ibm.com/developerworks/library/x-html5/?ca=dgr-lnxw01NewHTML