Scribd provides online publication of books, artwork, reports, and so forth using iPaper technology. Documents may be public or private, free or paid.
iPaper is essentially an improved version of FlashPaper. It's got a clean interface, and seems to import documents flawlessly – more than I can say for FlashPaper. Make sure you check out the button with all the little squares, used for navigation.
Here's some samples:
The Art of Woodworking Outdoor Furniture
Aplia Flash Documents (via Confluence)