Hi Chris, "Good content" means a couple of things - good for readers and good for Google. Good content for readers means that the content answers questions, provides value, offers solutions, and is engaging. You want to keep the reader on the page and on your website for as long as possible. To make good content for Google, you have to provide the search engine with a set of signals - e.g., keywords, backlinks, low bounce rates, etc... The idea is that if you make good content for readers (engaging, valuable, actionable, and informative), your content will get more engagement. When your content gets more engagement Google will see it as good content too and put it higher in the SERPs. Making "good content" is about striking that balance. Let us know if that answered your question!
It works in a similar way as a canonical tag does to show when a duplicate version of a page exists. But in this case, it helps Google index local content easier within local search engines. It also helps to pass trust across sites and improve the way Google crawls these pages. To know more about how errors you should not make when it comes to hreflang tags, you can check our previous article.
As we mentioned before, when someone finds your site via a link on a social network, they'll be bucketed under social media as a traffic source. This could include someone tweeting out a link, or it could include you posting a link to your Facebook page. If it's you doing the posting, you can also add a tracking token before posting to track those links as part of a larger campaign for you to analyze later!
Let’s say that you are selling dog food. And most likely you will want the best traffic possible on the keyword “dog food”. Creating/building/earning all of your links with the same anchor text will get you in trouble. If you are having 600 links from which 400 use the anchor “dog food”, you might be facing a problem; it will surely raise a red flag to the search engines. And we all know what search engines do when they are getting these kinds of alarms: they begin applying penalties and move your websites so far from reach of the user that you will not be even listed in top 100. 
Brankica Great post. Looks like I've got a few weeks worth of exploring to do - checking out these blog traffic boosting tools and ideas! One question I have: How do you measure the success of each of these tools and tips? Surely you have tried some that were less successful than others. Do you track metrics and weed out the less-than-stellar time-suck ideas? I'd love to hear how you settled on these that you mention in the post. Perhaps there's value in talking a bit about the ones that have fallen by the wayside and why as well.
Direct traffic is defined as visits with no referring website. When a visitor follows a link from one website to another, the site of origin is considered the referrer. These sites can be search engines, social media, blogs, or other websites that have links to other websites. Direct traffic categorizes visits that do not come from a referring URL.