72. Blogging will develop your expertise, hence your market value

I'm coming out with a special report on how to develop one's expertise, sold online for $300, and one of the major points I make is that a person MUST develop explicitly his knowledge base if he is to become an expert.

That's because a knowledge base (in the form of a book, blog, articles, etc.) will allow you to continually test and validate your knowledge. Equally important, it allows you to know what it is that you know.

Blogging is one of the easiest, most fun and convenient way of packaging your knowledge and share it with the world (or with your allies).