All you have to do is make your blog’s feed available to the Kindle Store, and Amazon will do the rest, formatting your content for the device. According to the email from Amazon, after a few easy steps, your blog should be up and ready to go in the Kindle Store after about 12 to 48 hours of processing. Not bad.
Publishers get 60 cents per month per subscriber. So likely it kindle can become your new income stream. But unfortunately, even if you want to, you can’t give your blog away for free on the device.