Interview with Ammon Johns and a Guideline to Evaluate Your Guest Post Strategy. "Any energy and effort you put into guest posting takes away from what you could be doing on your own owned properties. Always decide if the value you get out of working as a writer for another site or blog makes sense for you."
Google Webmaster tools is not Google Analytics. Now that you have this set up, you can start investigating what is really going on with your site. You will be able to check where your content is linked from (for example guest blogs, citations), see where search is coming up with errors, fix broken links and gain insight into your popular posts and key word searches.
Just because something is most linked, doesn't mean it's most clicked through. Click through rate will depend on who is doing the linking. So, for example, this article may have the most links, but it may have very low click through. Without looking at webmaster tools, you might be losing out on opportunities for improvement.