I was looking for some Search Engine Optimization tips for retailers and authors, and I found this quick Google video that gives some good tips for both. It offers Amazon.com as an example. Google loves offering a good user experience and Amazon.com definititely offers one. What I found interesting is that Google explains that many authors don't offer a home page for their books. Content on that homepage is important. At a look at this advice and see if you can use it for your business. A little relavent content can go a long way.
Please remember that offering excerpts from your book, reviews, opinions and any items that enhance user experience can help your business. The more interaction from users the better the user experience. Don't think about what you want as a business owner or marketer. Think about what the consumer would want. If you give them what they want, you'll get what you want.