1. Create a Web site for the book before you begin writing your book to build interest in both the book and the author.
There are many free sites where you can build the Web site for your book and to draw people in to learn about what you are writing and build their interest.
By having a Web site, you also have to keep the viewers of the Web site up to date on your progress which will force you to complete the book, because they will demand it.
2. Create a Blog for your book and how it is progressing.
Comment back on any posts to build a more personal relationship with the visitors to your Blog. When you interact with possible readers on a personal level they are more likely to read your book, and if they like what they read, they are more inclined to tell their friends and family about it.
3. Create a video trailer on YouTube for your book.
You can create an account on YouTube for free and upload your trailer there.
If you don’t know how, there are site where you can bid the job out on bidding sites like oDesk, Guru, and others for little money. You might even know someone that can create the trailer for you and even upload it for you.
These are only three ways to promote your book for free. Do you have accounts on Twitter, Facebook, Myspace, or other social sites? Use them to talk about your book there as well to mention your Blog or Web site.