You know what they say...
"When you look good, you feel good."
...And I happen to agree. As the digital world starts to increasingly become a visual-focused sphere, it's not enough to just present a quality product offline. You can have the greatest idea in the world, but the branding you create and the virtual lifestyle you present when selling your product or service online, will increasingly determine your success IRL.
All that being said, I believe that the key to success in today's digital world revolves around three key components. You must be interesting. You must be informative. And most importantly, you gotta look good.
Knowing what makes your audience tick. What motivates them. What makes them feel something.
Making sure what you're sharing is in line with what your target market wants to know more about.
Vivid, clear imagery conveying your overall purpose.