People who use the ambiguous phrase “social media marketing” are typically referring to advertising: you broadcast your message and hope people will listen. Even if you overcome consumer indifference with a well-targeted campaign, any subsequent interactions are affected by their very public nature. The privacy of dark social, by contrast, represents a potential goldmine of intimate, targeted, and relevant interactions with high conversion potential. Nebulous and difficult-to-track though it may be, dark social has the potential to let marketers tap into elusive power of word of mouth.
The term “organic traffic” is used for referring to the visitors that land on your website as a result of unpaid (“organic”) search results. Organic traffic is the opposite of paid traffic, which defines the visits generated by paid ads. Visitors who are considered organic find your website after using a search engine like Google or Bing, so they are not “referred” by any other website.