We used Calameo to publish our PDF as flipping books : but it turns out that this solution, while offering hosting services for free can turn out expensive when used on a monthly payment basis, especially when you work with your own dedicated hosting service.
- http://flipbuilder.com/ - starts 99$, does not run on ipad and iphone (flash based)
- http://www.epagecreator.net/ - starts 299$
- http://flippagemaker.com/ - starts 299$
we then looked into HTML 5 systems