Three Ways to Build Links in the Age of Google Penguin
AUGUST 6, 2012
In the days before Penguin, we used to discredit links between pages within the same domain. Recently, I’ve discovered that internal links actually can pass considerable link juice, as long as the authority of your domain is high and the referring source is tightly relevant to the page to which it is pointing. Domain authority : Post Penguin, whether a link is worth much is based more upon the domain authority of the source than other factors.