A lot of interesting ideas from this article in Data Mening Review on "Human Markup Language", being developed by the OASIS consortium:

"Who I Am" and "Why I am Here" are the first two stories communicators must tell before their message may readily be accepted. Recipients, before they take heed of the message, must answer in their own minds those questions demanded of the communicator. Experienced knowledge workers already understand that considerable effort can be expended in validating information and knowledge, a fair amount of which time is spent vetting the sources to establish trust in them and how to understand properly what they have to communicate.

Evolved from the informal practice of using emoticons to improve communication in a world of text-based e-mail, news groups and chat rooms, HumanML is aimed toward a more formal representation of human characteristics (e.g., cultural, physical, psychological, etc.). It is focused on enhancing the fidelity of human communication by providing machine processable subtext through the use of extensible markup language.

Also: "The Six Stories You Need to Know How to Tell" by Annette Simmons. I like the following passage:

Our tendency to try to create teaching that is clear creates an unintended consequence of oversimplification.
When someone understands what you want them to do, but doesn’t buy into why you want them to do it, you will never be satisfied with their performance. Clarity is over-rated in teaching.