I don't generally think of my own list as a traffic source, because those are people that subscribed and keep coming back, mostly because of good content. This is more tutorial about where to get fresh traffic from in case a person is not using some of these sources already. Where have you guest posted, I haven't seen any, would like to read some of those :)
If you check out some of the suggestions below this though, you're likely to find some opportunities. You can also plug in a few variations of the question to find some search volume; for example, I could search for "cup of java" instead of "what is the meaning of a cup of java" and I'll get a number of keyword opportunities that I can align to the question.
This is a fantastic list! I thought I had it covered, but I'm only half way there. I can't wait to tackle some of these. It can all get overwhelming at times, because there's so much information and so many resources out there. I would like to take advantage of Facebook and Google ads, but I'm not sure if they'll be worth the investment when compared to everything else out there. I just started guest posting, I have three due this weekend. And I'm going to start writing articles for Biznik.com - which is a great site and has put me in touch with loads of local people. Love it. The forums is an area that I just recently started dancing around it and I'm still finding my way. Thanks for sharing this great information.
Bonus: WHAFF is a good tool to make traffic, and also a good tool to make money if you share your invite code in microworkers.com alike websites. Get WHAFF rewards on your abdroid device, and use my invite code: CG90779 to get your first $ 0.50. After getting at least $ 10.5 you can withdraw using your Scrill account and upload the balance to microworkers to make further campaigns
Google claims their users click (organic) search results more often than ads, essentially rebutting the research cited above. A 2012 Google study found that 81% of ad impressions and 66% of ad clicks happen when there is no associated organic search result on the first page. Research has shown that searchers may have a bias against ads, unless the ads are relevant to the searcher's need or intent 
The first is that it’s caused almost exclusively by users typing an address into their browser (or clicking on a bookmark). The second is that it’s a Bad Thing, not because it has any overt negative impact on your site’s performance, but rather because it’s somehow immune to further analysis. The prevailing attitude amongst digital marketers is that direct traffic is an unavoidable inconvenience; as a result, discussion of direct is typically limited to ways of attributing it to other channels, or side-stepping the issues associated with it.
Hi Brankica, Thanks for a great article, you are so generous with sharing your knowledge and I always look out for your posts etc. I recently bought a product for my personal use that really blew me away, so I wrote about it on my blog, and sent the supplier a link. They were absolutely delighted when they saw my blog post they added it to their testimonial page with a link back to me. Indirectly the product links to a topic covered on my website so this was a great way for me to get a little extra exposure. I'm def going to work through your list and do at least something new from it every day. Cheers, Caroline
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BuzzFeed: Everyone knows the primary perpetrator of Clickbait and content appropriation on the web, but seemingly few people realize that anyone can write for them. You can sign up for a free account here, and simply start creating content on their site. There’s a lot of content that sees very little exposure on the site, but if something does catch on – perhaps because of your audience and your brand reputation – BuzzFeed will reach out to you and help by promoting it on the main sections of their site.
Organic search traffic used to just mean the amount of traffic that came to your site via someone who found your site using a search engine. Then, you could drill down into more detail to see which keyword they searched to get to your website. For example, we might learn that someone came to HubSpot.com by searching the keyword phrase "inbound marketing." This is important to know because it helps businesses understand which keywords are driving the most traffic, leads, and customers so they can develop better-informed content and keyword strategies.
Traffic data is a great way to take the temperature of your website and marketing initiatives. When you are writing and promoting blog content on a regular basis, you can use traffic data to track results and correlate these efforts to actual ROI. Be sure to look at traffic numbers over long-term intervals to see trends and report on improvement over time.