Look at these two types of links – one of them is in your nav, and the other is in the content of your page.  Which one is more valuable?  But what if one of those in-content links was an image, while the other is text?  This goes to show that not every link is created equal, and getting familiar with the details will help you build a stronger lining structure.

How Links in Headers, Footers, Content, & Navigation Can Impact SEO – Whiteboard Friday