If you are the author of a book that is sold as an e-book, you may be able to gain additional revenue from that book in the near future through its resale in used form in a digital marketplace called ReDigi.
ReDigi is a company that sells digitally pre-owned music, and is poised to do the same with pre-owned e-books. It calls itself "the world's first pre-owned digital marketplace." The company partners with iTunes to sell its digital files. (It cannot partner with Amazon, presumably because Amazon is not willing.)
Currently there's a lawsuit against ReDigi by Capitol Records that claims copyright infringement and is trying to shut the company down, but ReDigi executives say this is a mere blip that will not be a problem for them. According to an article in the July 30 issue of Publisher's Weekly (ReDigi Plans to Sell Used E-Books), "(i)f ReDigi prevails in court, it could upend the way e-books and other digital products are sold, since such products would get a second life on the resale market and provide a new revenue stream for publishers and authors."
In the music world, ReDigi is working directly with artists rather than the record labels, because of the lawsuit, and paying the artists 20% of the sale of their pre-owned music. With e-books, the company "plans to pay authors through their publishers. Publishers and authors will get paid in cash; sellers get cash or credit in their ReDigi account."
Cost to consumers is what is driving the marketplace that ReDigi envisions for pre-owned e-books. The lower price of e-books versus paper books is a major factor in many consumers' choice to read e-books, and ReDigi believes that the even lower price of pre-owned e-books creates huge market potential.
The e-revolution just keeps getting more interesting.