The <address> Tag in HTML 5

The address tag is used for contact information for the current article, if it is coded inside an article element, or else the document as a whole if not.

The address can be a simple mailto: link:

<address>
   <a href="mailto:John Doe &lt;John.Doe@ExampleOnly.com&gt;">Contact the author</a>
</address>

Or, the address can be a hypertext link to a user profile with contact information:

<address>
   <a href="/users/John.Doe/">View John Doe's profile and contact info</a>
</address>

The <address> tag is only to be used for contact information. A postal mailing address should only be put inside an address element if the method for contacting the author(s) is via postal mail.