SALT publishers have good advice for authors. 100 words, they say. I didn't count them.
Here are some:
If youâ€™re not on the Web, pretty soon you wonâ€™t exist in the minds of readers. Only networked writers will survive. This is an issue of discoverability and of consumption. Being a writer has a lot to do with the three Ps: profile, publicity and presence. Thatâ€™s Web presence. Out of thousands of books published each year we encounter very few and choose less from among them. The back story to a book is as important as the book itself. Readers must know you to choose you. This is a core competence in using the Web, because collision equals sales.
If it matters for authors, it matters for you too, if you're in business.