Hi Brankica, wow what an extensive list. As a one-month old blogger this list is overwhelming so there were four things I have noted and will look into further are stumbleupon, digg, roundups and vark. I hope to implement them soon and will keep track of the results. As for the other sources, I will come back to this post to see what other sources to use next. I am curious to know from your experience, what are the Top 10 most effective traffic sources?

Visual assets aren’t regular images you might pull from a Google Image search. Instead, these are unique diagrams or infographics you’ve created specifically for your epic content. These kinds of diagrams or infographics explain a theory, communicate a point, or showcase data in exciting and interesting ways—and gain attention (and links) because of it.
Mobile traffic: In the Groupon experiment mentioned above, Groupon found that both browser and device matter in web analytics’ ability to track organic traffic. Although desktops using common browsers saw a smaller impact from the test (10-20 percent), mobile devices saw a 50 percent drop in direct traffic when the site was de-indexed. In short, as mobile users grow, we are likely to see direct traffic rise even more from organic search traffic.
For a long time, digital marketers summed up the properties of direct and organic traffic pretty similarly and simply. To most, organic traffic consists of visits from search engines, while direct traffic is made up of visits from people entering your company URL into their browser. This explanation, however, is too simplified and leaves most digital marketers short-handed when it comes to completely understanding and gaining insights from web traffic, especially organic and direct sources.