BizSugar.com › Online Marketing › SEO Value Of Google+Profile Using Rel=”Author”

Google will recognize you as a real author by linking article with your profile page. It also helps to differentiate between the real authorized person and the spammer. Google adapts this method to discover the authenticate author.
Provides Credibility and Coverage: Since you are the only authorized person so credit for the article comes to you, in terms of coverage it shows about how many people have circled you on Google+ and also clicking on link provides information about you from Google+ profile. So one or other way it also helps in making your network strong.