Books in Beta Form

congaflum writes "The Pragmatic Bookshelf recently released the second beta of their upcoming book Agile Web Development with Rails. By releasing the book to the public in beta form, the authors are able to gather feedback about the books content from a larger audience that would normally be the case. Readers get to influence the direction on the books content by posting feedback to the publisher's website. And of course there's the benefit of simply getting to read the book early. Could beta-version books be a sign of future changes in the commercial publishing industry? And with the availability of things like print on demand these days, how about books that are much more frequently revised (why buy a year-old Edition 1 of something, if you can have Edition 1.1.18?)"