Referral Sources – This tool provides information regarding how visitors got to your site. Visitors can arrive on your site by entering your URL directly into their browser, through a search engine or through a referral from a third-party site that’s linking back to yours. Google Analytics breaks this information down so that you can see how many people came through each referral source, their average time on site and the number of pages they typically visited, which can be helpful in terms of determining how to allocate your traffic generation resources.