Here is a list of some of the new HTML5 Tags

<article> Defines an article.
<aside> Defines content aside from the page content
<canvas> Defines graphics
<command> Defines a command button
<datalist> Defines a list of options for input values
<details> Defines details of a document
<figcaption> Defines the caption of a figure
<figure> Defines a group of media content
<footer> Defines a footer for a section or page
<header> Defines a header for a section or page
<hgroup> Defines information about a section in a document
<keygen> Defines a generated key in a form
<mark> Defines marked text
<meter> Defines measurement within a predefined range
<nav> Defines navigation section
<progress> Defines progress of a task of any kind
<section> Defines a section
<summary> Defines the header of a “detail” element
<time> Defines a date/time
<wbr> Defines a possible line-break

Media Elements
<audio> Defines sound content
<video> Defines a video
<source> Defines media resources
<embed> Defines interactive content or plugins