In my previous discussions of social media, channel architectures, and branding, I discussed the fact that I am manic about locking down my online brand (onlinematters) because there seems to be some relationship in the universal search engines between the number of posts/the number of sites that I post from under a specific username and how my posts rank. It is as if there is some measure of trust given to an author the more he publishes from different sites and the more people see/read/link to what he has written. I am not talking about authority given to the actual content written by the author – that is the core of search. I am talking instead about using the author's behavior and success as a content producer to change where his content ranks for any given search result on a specific search term. It is similar, in many ways, to what happened in the Vincent release where brand became a more important ranking factor. In this case, the author and the brand are synonymous and when the brand is highly valued, then those results would, under my hypothesis, be given an extra boost in the rankings.
via www.aboutonlinematters.com
Sharing a very useful article from Arthur Coleman (@onlinematters) because it hits upon some important points about author rank and how it will affect SEO.

