Cool stuff. Looks like a more advanced version of what I am trying to do. Mines just a bunch of hacks slapped together though.
http://www.3dNewz.com
Mine isn't nearly advanced as your idea, but I like your idea a lot. So if it can do htm, is it going to be able to put images and link those images to whereever you want? Will it have an html preview so you can see what it will look like before you publish/change code?
Keep up the good work.