Digital Photo Books
Why don't you try to appoach either Amazon or Barnes and Nobles directly, I believe you will still need a publisher, even if you only plan to use only electronic media, so why don't you ask a publisher? OTOH I'm sure there are better forums other than DPR out there better suited to help you with you questions. Please let us know your findings.
Ah, but I was so much older then, I'm younger than that now. Bob Dylan