is a new "ebook crowdfunding platform". I think this model could work for some books... it's a pretty interesting thing to keep an eye on.
From this article on LibraryJournal
Unglue.it works by allowing the rights holders of an already-published book to set a funding threshold—generally between $5,000 to $25,000—and a deadline for a funding campaign. If supporters pledge sufficient funding prior to the campaign deadline, the book will be released as an “unglued” ebook edition, free of digital rights management (DRM) software, and free to copy and share under a Creative Commons license.
The first 5 books are: