Discussion and usage about new HTMl5 elements are being hot now days and most of the webmasters and designer trying to explain their story about how thy have used these new elements efficiently .Well I am not specifying description about any tags, just mentioning some important tags you should know to take full advantage of HTMl5.

Canvas
Aside
Audio
Video
Article
Command
datalist
embed

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.