Amazon recently released a beta version of a plugin for InDesign that allows user to convert INDD files to Kindle format. The company already provided ways to digitize and self-publish texts via Kindle—all free—and now this makes it easier to publish more image-based publications, say that illustrated design book you've been toiling away on in private. According to Amazon's press release, the plugin allows users to maintain font styling and add links within the book, among other features. Uploaded books can be purchased by iPad, iPhone, PC, Mac, Blackberry and Android owners who have the AmazonKindle app, since Amazon doesn't care how customers read e-books, as long as the books are bought from its store. And 70% of each sale goes to you, which you can put towards R+D for your follow-up e-tome.
More information and downloads here.