Awareness and Branding. Visibility is one thing and being top of the line is another. The more that people see you, the higher your chances of being remembered and that keeps awareness among potential customers. Same goes with branding. Once you start linking your business with certain terms and keywords which are deemed positive for you, its effect will most likely be beneficial for your business and can, later on, lead to a sale.
While network marketing companies financially incentivize their distributors to sell their products, just like in affiliate marketing, it’s not just the money that motivates word of mouth and it’s not money alone that will make the sale. It’s got to be a game-changing or life-changing product or service to give people something talk about with positive emotions like excitement and enthusiasm, so that the people they talk to want to be a part of it (and fear being left out). If people believe the company has a lousy product and compensation plan, then people won’t feel motivated to talk about it or have persuasive reasons to tell others to buy into it as well. If people don’t believe in the person or company selling it, the seller won’t generate any sales. This is why brands can charge more and generate billions in value, like these top 10 most valuable brands in the world:
Network marketing: Network marketing companies have a great business model (for those who own the company), because they only pay their sales people (a.k.a. “independent business owners”) when they make a sale or recruit another person. They only pay on performance. So to sell a bunch of product, the direct sales company really doesn’t go directly to the consumer through TV or magazine ads or similar methods that could easily cost millions; instead they go indirectly through their sales people and only pay for the word of mouth advertising as a commission on a product sale. It’s really savvy business strategy that’s low-risk and high-reward, if it spreads far and fast enough by emotionally exciting the distributors. Distributors are heavily using social media like Facebook, YouTube, blogging and the like to generate sales and grow their network online.
Retargeting: Each platform offers retargeting to help you reach people who’ve already visited your website. The benefit of retargeting is that a conversion is more likely when you know the prospect is interested. You might also upload an email list and use Facebook Custom Audiences to serve ads directly to subscribers. In the following example, we see two ads that show in the Facebook sidebar to reach former web visitors.

One of the reasons for a traffic drop can also be due to your site losing links. You may be seeing a direct loss of that referral traffic, but there could also be indirect effects. When your site loses inbound links, it tells Google that your site isn't as authoritative anymore, which leads to lower search rankings that in turn lead to traffic drops (because fewer people are finding your site if it's not ranked as highly and more).

Those who communicate value, attract others who seek that value in that topic. Those who are in the know, have an edge over those who don’t know, and that’s valuable. It helps people get more of what they want and like, and reduce their risk and negative experiences. In business, it’s profitable to have more of the right information than your competitors ahead of time (as long as it’s done and used legally to avoid fines and reprimands like with insider trading). Having valuable information first means you can make moves and investments before competitors, to buy cheaper and/or sell higher.

A variety of methods can increase the prominence of a webpage within the search results. Cross linking between pages of the same website to provide more links to important pages may improve its visibility.[47] Writing content that includes frequently searched keyword phrase, so as to be relevant to a wide variety of search queries will tend to increase traffic.[47] Updating content so as to keep search engines crawling back frequently can give additional weight to a site. Adding relevant keywords to a web page's meta data, including the title tag and meta description, will tend to improve the relevancy of a site's search listings, thus increasing traffic. URL normalization of web pages accessible via multiple urls, using the canonical link element[48] or via 301 redirects can help make sure links to different versions of the url all count towards the page's link popularity score.
The first one is pretty powerful and pretty awesome, which is investing in demand generation, rather than just demand serving, but demand generation for brand and branded product names. Why does this work? Well, because let's say, for example, I'm searching for SEO tools. What do I get? I get back a list of results from Google with a bunch of mostly articles saying these are the top SEO tools. In fact, Google has now made a little one box, card-style list result up at the top, the carousel that shows different brands of SEO tools. I don't think Moz is actually listed in there because I think they're pulling from the second or the third lists instead of the first one. Whatever the case, frustrating, hard to optimize for. Google could take away demand from it or click-through rate opportunity from it.

While SEO doesn’t guarantee that you will keep receiving traffic on autopilot for a long time, it does give you the peace of mind that doesn’t come with PPC marketing. Once you rank for a particular keyword, you can keep doing the needed on-page SEO to maintain your rank. By being more sustainable, SEO can help you dominate a market segment without burning a hole in the wallet.
In 2007, Google announced a campaign against paid links that transfer PageRank.[29] On June 15, 2009, Google disclosed that they had taken measures to mitigate the effects of PageRank sculpting by use of the nofollow attribute on links. Matt Cutts, a well-known software engineer at Google, announced that Google Bot would no longer treat nofollowed links in the same way, to prevent SEO service providers from using nofollow for PageRank sculpting.[30] As a result of this change the usage of nofollow led to evaporation of PageRank. In order to avoid the above, SEO engineers developed alternative techniques that replace nofollowed tags with obfuscated Javascript and thus permit PageRank sculpting. Additionally several solutions have been suggested that include the usage of iframes, Flash and Javascript.[31]
Using the insight from the Data Cube can serve your blog content creation process in two ways. To begin, you will be able to create posts that align themselves well with what people seek online. This will increase the traffic to your page and help you to boost engagement. Secondly, since you are maintaining a steady stream of high-value posts that are tailored to the interests of your target audience, you will have a far easier time building consistent readership and encouraging people to move through the sales funnel.
Anyone with a website can greatly benefit from understanding organic search engine optimization. Also called organic SEO, organic search engine optimization is a process of optimizing your website copy and HTML in order to help your website rank higher on search engines like Google and Bing. This way potential customers can find you quickly and easily.

Keywords may get eyes on your content, but they won’t hold a viewer’s interest. You need something that’s going to keep them engaged, and keyword stuffing won’t achieve that. This is where the quality of your content is essential. Well-written, well-researched content keeps people reading, as it provides the solution they need, even if that solution is just something funny to fill a spare five minutes. It’s possible to enhance the content in many ways, such as formatting to arrange material in easily digestible sections, using infographics that are visually appealing and easy to share across social media, or creating videos that express ideas instantly. And don’t forget links. Creating a network of related content keeps viewers engaged with a constant stream of relevant information, and increases the chance they make a purchase.
I think for agencies as far as how we appear in organic search ourselves, we are definitely going to need to leverage all 3 of the solutions you talk about and agencies who haven't branded their products/services are going to have to do that and are going to have to also employ branding strategies. In addition, we have to optimize for other search ares like you say in your point #2 and we must look at optimizing existing content for voice search and answers/featured snippets like you say in point #3.

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.  
Why? It allows you track visits on a specific web page. Whatever page that newly acquired customers land on after the sale, this will be your “Destination.” You can add the URL of that page in the “Goal details” section. There are other optional details that you could include. For example, you can assign a monetary value to a newly acquired customer. You can also map the journey that customers take up until they convert. At the very least, configure the first option. You need that hard dollar value to calculate ROI.
Your strategy defines your audience, your platform, your content, and even how you measure success. For example, if you sell a product for a young demographic, you may decide that Instagram is the best place to build your brand by using a series of witty pictures with a strong call to action to make a purchase. Alternatively, you may decide to extend the reach of your brand by attempting to break into a new market, such as building a rapport with women, who comprise a large proportion of Pinterest users. Micro-blogging may be an ideal way to give busy business people the bite-sized content they need on their morning commute, while infographics provide visual punch to make a point instantly.
Although it may have changed slightly since BrightEdge published its report last year, the data still seem to hold true. Organic is simply better for delivering relevant traffic. The only channel that performs better in some capacities is paid search ads, but that is only for conversions, not overall traffic delivery (Paid Search only accounted for 10 percent of overall total traffic).