The Featured Snippet section appearing inside the first page of Google is an incredibly important section to have your content placed within. I did a study of over 5,000 keywords where ranked on page 1 and there was a Featured Snippet being displayed. What I found was that when was ranking in the Featured Snippet, the average click-through rate to the website increased by over 114%.
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.
We are in the SEO industry for a while now, wearing many hats: digital marketers, tool developers, advisers, researchers, copywriters, etc. But first of all, we are, just like you, site owners. And we’ve been through ups and downs regarding organic traffic, and we were in the situation of trying to understand why the Google traffic dropped dramatically at some point as well. Having all these in mind, we’ve thought of easing your work, and we’ve put together a list with the top 16 reasons that can cause sudden traffic drop, unrelated to Google algorithm changes or penalties.
Another point which you did mention (between the lines: "and updating your backlinks to point to HTTPS URLs") but I actually didn't realize enough is that updating backlinks when your site switches from http to https is very important. Redirecting all http traffic to the https version of your site from the server (301) is necessary, but doesn't solve losing referral data. Only updating backlinks, especially those on httpS-sites, does. I'd like to emphasize that!
To sum up all of this information, even organic traffic, like direct traffic, has some gray areas. For the most part, though, organic traffic is driven by SEO. The better you are ranking for competitive keywords, the more organic traffic will result. Websites that consistently create content optimized for search will see a steady increase in organic search traffic and improved positioning in the search results. As a marketer, it is important to look at your keywords and high-ranking pages to identify new SEO opportunities each month.  

I am actually using a free service called Cloud:flood created by Glen of the ViperChill. I had great success with it, making a file available for download (I shared a list of 140 blogs worth following). It has two options, a person can RT the download that will take new people to a post where the download is (or what ever landing page you want them to come to) or they can share it on Facebook instead of tweeting it.

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 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.
A few links down and I've noticed that Brian has a link from Not bad! Turns out that his content has been referenced within one of WordPress's codex posts. If I were to reach out and offer some additional insight, citing one of my articles, there's a chance I could bag a similar link, especially considering they have a 'Useful Resources' section.
Understanding how people landed on your website is a key component of optimization. If you’ve ever looked at Google Analytics (and if you haven’t you should), you’ve probably seen the words “Direct,” “Referral,” and “Organic” in relation to your traffic. These are the sources where your users come from — or what Google calls channels. But what do these words really mean, and why do they matter?
Blog comments have a number of sources of value, and traffic is just one of them. By monitoring your competitors and your betters, you get a keen sense of what the industry is doing and where trends are going. You leave valuable comments and people take notice, including industry influencers and possibly the owners of these top-tier sites. You create a gateway back to your site, and even though the links are nofollowed, they’re still links for people to click. You also build a personal reputation as a commenter around your industry, raising sentiment and value.
In most cases, the largest amount of traffic to your site will be comprised of direct and organic traffic. If you have a partnership with an industry association or manufacturer, you may see referral traffic from their website. If you decide to do paid advertising such as pay-per-click marketing, you might see traffic coming in from ad campaigns as well.
You could get even more specific by narrowing it down to customer base. Is there a specific group of clients you tend to serve? Try including that in your long-tail key phrase. For example: “SEO agency for non-profits in Albuquerque NM.” That’s a key phrase you’re a lot more likely to rank for. Not to mention it will also attract way more targeted, organic traffic than a broad key phrase like “SEO agency.”