Increase the Visibility of your Google+ Business Page
Blog post by +Julio Fernandez
To confirm the ownership of a site, Google looks for two things: a rel=publisher tag from your Web site to your Google+ page and a reciprocal link back from your Google+ page to the main page of your Web site.
Read the blog post: http://goo.gl/0jnYU
to learn how to add the tags and validate your Google+ business page to help Google.com and Google+ users find you.