Typepad, the blog platform DigitalAgency have been using for about 18 months now, have been quick off the mark to add this new FaceBook feature.
When you write a post in Facebook, it also allows you to notify your friends of new stuff via your profile feed in FB.
I'll give it a whirl and see if it's useful or not.
I'm also interested in the new ways that FB is opening up the platform to brands, with things like brand pages.
Will report back on this when I have noddled about with it a bit.