Not that I've got a chance to test it yet, but just found a blog post from Joe Friend describing how Word 2007 will have a blogging feature. Sounds neat! From the comments it seems that the output doesn't go through validation too well, but it's still beta. Hopefully it will turn out better in the end. It supports Community Server, so I guess I should get a move on and upgrade this site. (At least before November.)
But what about OneNote? I usually use OneNote a lot more than Word. And after having read Chris Pratley's blog, it seems that I will be able to blog to Community Server by Blogging with OneNote 2007 via Word 2007 . OK, I would have liked a more direct way of doing it, but it helps. :)