Build Your Own Blog
Radiant isn’t currently a full featured blogging engine, but that doesn’t need to stop you from using it to power your blog. It’s a cinch to add an RSS feed page and comments can easily be powered by a third party service like HaloScan. Combine this with the Archive Behavior and you’ve got a nice blog with date-based URLs.
A comments system is on the top of my list of features that I want to add to Radiant. I’d like it to be easy to turn on comments for any page. This would make it easy to build a blog or even a documentation site like php.net.
Until then, however, you will have to content yourself with your own hackery.