This way, when you do drive traffic, you know where that traffic is coming from. Otherwise, you're left in the dark. For example, if you do some content marketing on Quora.com or Medium.com, you could use the campaign source as simply Quora or Medium and the campaign medium as content_marketing and the term as the term you're working to rank for. Get the picture? Then, you'll see all the beautiful results directly in Google Analytics and you'll know specifically where your traffic came from.
WOW. I consider myself a total newbie to SEO, but I’ve been working on my Squarespace site for my small business for about 3 years and have read dozens of articles on how to improve SEO. So far, this has been the MOST USEFUL and information-packed resource I’ve found so far. I’m honestly shocked that this is free to access. I haven’t even completely consumed this content yet (I’ve bookmarked it to come back to!) but I’ve already made some significant changes to my SEO strategy, including adding a couple of infographics to blog posts, changing my internal and external linking habits, editing meta descriptions, and a bunch more. Thanks for all the time and passion you’ve out into this.