James Murdoch email to Steve Jobs tells how much authors are paid for ebooks
J Thoendell stashed this in Tech
"The economics are simple enough. [Amazon] Kindle pays us a wholesale price of $13 and sells it for 9.99. An author gets $4.20 on the sale of a hardcover and $3.30 on the sale of the e-book on the Kindle."
Surprisingly small compared with self-publishing.