If you're located in the US, you can now read this blog on the Kindle, by subscribing here for $1.99 a month.
I don't know what my cut is, and with my posting frequency that's probably a bit expensive -- but it reinforces the cohesive content experience on the Kindle (which I raved about here, in case you missed it). And it puts a price tag on that experience, which I think is the right way to go. Is a change of medium necessary, and sufficient, to introduce payment for content?