Small business and the Internet

I'm considering tackling the (most-likely) herculean task of writing a book on small businesses and how they can utilize the Internet to better connect with their customers. I'm planning on including topics such as monitoring and writing in blogs, e-mail/newletter distribution, web applications, research and the like, with a Cluetrain-like focus.

If you had a friend who was a small business owner and you wanted to tell them one thing about the Internet, what would it be?