I, Me, Myself

Keith Ferrazzi, author of the book Never Eat Alone - on the five steps to brand yourself:

Talk about your expertise, with everyone you meet.
Prepare a formal one-hour talk with a deck of slides.
Write an article.
Write more articles.
Write a book.

And if you need help in making a great beginnning for your book, Kathy Sierra on Creating Passionate Users has some useful tips!