Book Trends and Data Advice for FREE!

This may be of interest to you. It's a great site for book data and it's FREE while they test the site - good news for us. TitleZ.com

What it's good for:
* Data for historic and current sales rankings from Amazon
* How topics or titles perform over time, so you can measure the competition and understand what's hot
* Insight into what to publish and when

Let me know what you think or if you have any useful sites you would like to mention.

Books