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 <John.Doe@ExampleOnly.com>">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.