Do you have a book ready to go but aren't quite sure how to publish it online? Below are a list of links to online publishing resources. You'll find guidelines, tips, and general how-tos. If it seems like Greek to you, let me know! I'm fairly new to this type of epublishing too, but I can say that I've successfully formatted ebooks for Kindle and now have the software and the knowledge to handle both epub and mobi files, which are the necessary file types for the most common e-readers. One thing I can tell you is that formatting for ebook readers isn't nearly as much fun as formatting for pdf. There's a lot less room for creativity. For example, headers and footers just don't work because of the way that pages convert differently on each reader.
Despite the limitations, you just can't beat the thrill of seeing your book on Amazon's Kindle for the first time. Makes it look like a "real" book even if the design is boring! And I look forward to the time when I can put my design skills to work on the Kindle, the Nook or the Ipad. Technology's bound to make that possible sometime in the not-so-distant future!
The ABCs of e-book format conversion: Easy Calibre tips for the Kindle, Sony and Nook
Amalthia’s e-Book formatting tutorial
Amazon Kindle Publishing Guidelines
Formatting for Kindle (Blog by Guido Henkel)
Bookbaby.com guidelines for e-book conversion
Barnes & Noble Pubit! ePub Formatting Guide
Creating ePub files with Apple Pages for iBookstore
Getting Started With Google eBooks
Kobo for Authors and Publishers
Smashwords Style Guide