Dave Gray, the CEO at XPlane, focuses a lot on clarity, writing and graphic explanations of business processes.
Here he talks about writing things down, which helps most people to solidify their approach, to articulate their rationale, and to ensure clarity.
He also offers this:
"This is also one of the reasons having a blog can make you a better manager. By writing down your management philosophies and recording your best management conversations you can make your blog a database of best practices and ideas."
Perhaps THAT'S what the Be Excellent™ blog is all about?
(Thanks Dave for the explanation!)