[blackbirdpie url="http://twitter.com/calebjross/status/152575481391230976"] It could work. An online used book selling site, that also manufactures an eReader device, such as Barnes and Noble or the Amazon Marketplace, partners with publishers to provide kickbacks on used book sales in exchange for distribution rights of eBooks. Let’s call it UpgradeToEbook.Amazon.com. It would work like this: Here’s an example: Let’s say Bookseller_675 has a print copy of Stieg Larsson’s The Girl With the Dragon Tattoo. But he’d like to read it on his Kindle. It’s not in this reader’s best interest to purchase the book again. The publisher gets no new money. The book sales site gets no new money. The reader gets no eBook. What do to do? Bookseller_675 decides to sell the book on the Amazon Marketplace using the UpgradeToEbook.Amazon.com platform for $6. Amazon takes its cut (15%; $0.90), but for this transaction the seller agreed to kick an extra 35% to Amazon…