-Public: These is a characteristic that is more valuable for other kind of ideas, obviously if you are writing a blog or an authority site you are going to make your content public so is not that significant in this case. But don’t rule it out so fast. Don’t limit the spread of your content and ideas to the internet, social media, and all that stuff.
The reality is that most of the stuff still spreads through word of mouth, the main way we share things is still by conversations, who knows if these would change but till this day we are still talking to each other a lot. So how can you harness the power of these conversations to your advantage? What I would recommend is that, if your product or content allow it you make it public by stimulating some behavior in your followers that make people ask them in trivial conversations why are they doing it. If you could do this, you could start getting a lot of free traffic from it.
-Practical value: I suppose most of you create practical content already but this is important to always keep in mind. Two things to keep in mind is always the self-interest of the reader. You want them to have a clear answer to the question What's in it for me? And also for the sake of simplicity, you want to have clear action points in your content.
You want that when the reader finish reading your post to have 2 to 3 clear actions to take right after that will provoke a real benefit to them. If you can do this, they will come back and share your content with anyone available. If you try to pass on some practical stuff, but in the end the reader does not have a clear idea of what he has to do next they will demotivate and leave.
You could even finish your post with two or three task they have to do (Does this remind you to something?)
-Stories: Sometimes when we try to share something useful we get to scientific and give facts and lessons and it becomes boring. People in the Internet have a low attention span and some of them don’t want to be educated. But if you could surround your message with a story it is a lot more sharable. You have to find a way so they cannot tell the story without sharing your message or even without reminding and talking about your product.
It is quite hard to do, but if you become a good story teller and surround your messages and promotions with good, sharable stories you are going to see the payouts.