Google+ Linking out contributors for SEO & Marketing?

[Nixon]

There are two ways to claim Google+ Authorship for your content. First off, if you have an email address that matches your domain (you@yourdomain.com) and each piece of content you have written on your website is clearly marked as by you, you can log in to your Google+ account, visit the Google+ Authorship page, and enter your email address.

If you don’t have an email address on each site you write content for, you can claim authorship by adding a link to your Google+ profile to your author bios on each site you write for using the following format.

<a href=”[profile_url]?rel=author”>Google</a>
Then add each site’s link to your Google+ profile under the Contributor To section.

You can read more details about how to claim Google+ Authorship in Webmaster Tools Help. You can also use the Structured Data Testing Tool to see if Google has linked your Google+ profile to your content.