Create a blog to promote your book when you start writing it
Can I be any more clear than that? For the authors-to-be who cling to the notion that some publisher is going to take responsibility for marketing and promoting your book - get over it! It was never true and it never will be true. Even those of you with agents and agreements - check the fine print. You are totally responsible for your own marketing.
A simple and clean blog will provide a window to the world. You are not writing your book for 100% of the population. At best, you are targeting your book to 3 or 4% of the reading public and creating a targeted blog will help you do that. They really are simple to create. This one uses a Google sponsored template called Blogger and somewhere on the page is a link to create your own. Follow the basic set up and start entering the conversation. It's alright if you start by simply informing your spouse, children, family and friends. If you invite them to forward your musings to their friends and so on, you will begin to create some followers. That will eventually allow you to tell them about your upcoming book. One other thing to keep in mind, and this can be difficult for writers, keep it short. One of the world's leading marketers, Seth Godin, keeps his blog to about 200 words and he has 100's of thousands of followers.
Many of you have blogs already so don't forget to post something new about 3 times a week and invite people to follow and forward as I invite you to do the same with this blog.