- Book Creator
- Creative Book Builder
- Demi Book Composer (free)
- Ebook creator
- Ebook magic
A great summary of the above Apps can be found at Technology Bits Bytes & Nibbles.
A comparison of which one to use can be found at : The Amazing iPad.
One schools collaborative iBook using Pages App as well as Drawing Pad and Whiteboard Lite - iPads at Burley.
A useful presentation at Author Stream on How to Create an Ebook. For some detailed instructions on using Creative Book Builder start from slide 26.
For a quick ebook of any website or blog use dotEPUB. You can install a bookmarklet on your iPad which will automatically convert the webpage you are viewing to an ebook. I quickly and easily converted pages from this blog into an ebook via dotEPUB's bookmarklet (see pic above).