How To Link Google Analytics to Google Webmaster Tools
Why connect GA to GWT? When you connect these two accounts, they share data, making more reports visible in Google Analytics: the “Search Engine Optimization Reports.”
These reports show how your site is performing in search. They include the following:
Queries Which keywords are you ranking for? Which are getting clicked?
Landing Pages Which of you pages are ranking? Which are getting clicked?
Geographic Summary Where in the world are your search visitors from?