The design is clean, modern, and features large, beautiful images, audio, and videos. A story about Patagonia, for example, includes stunning visuals of the Perito Moreno glacier, Torres del Paine National Park, and penguin and sea lion colonies – complete with sound effects! Calls to action, to book travel on KLM.com, are subtly embedded in images at the bottom of each story.
To make sure content (yep, even that top-of-funnel stuff) gets the credit it deserves, use multichannel tracking (also called attribution modeling). That's a way to set up your analytics platform so it allocates a part of each conversion to each of the channels touched by the customer on their happy path to conversion. For example, at Moz, we find the average relationship has seven to eight customer touchpoints before conversion.
The reality is that just creating content isn’t enough. In many cases, you need to amplify it. You need to market your marketing. This is where social media can help a great deal. Also recognize the many places (and many people: customers, employees, influencers) that can help you amplify your content marketing. (bonus: presentation on the difference between influencers and advocates)