Using Your Kindle Book To Gain Market Reach

"One of the best reasons to publish a Kindle book is for market reach and credibility. Yet, you can't simply get your Kindle book up and expect sales to flood in. Any author who wants to get the most traction for your published works needs to be very proactive with marketing and promotions. There's no way around this."

http://www.themarketingmindset.com/2011/01/kindle-books.html