I think the way forward in these areas is with chat-to-blog bots.
LJ has a Jabber bot that does it, I think, and there’s Sabifoo. [1]
I even had automatic posting to my Oddmuse wiki via their !gateway command working for a while. [2] Sabifoo is pretty cool, although the gateway stuff is hard to debug. 
– AlexSchroeder 2007-03-13 21:11 UTC
I was fiddling with using Oddmuse as a twitter-like earlier today. All we’d need is a comment-like page which pushed the post to the top, rather than appending it at the bottom. That would provide a single-user view of their microblog on each page.
Then it’s a case of folding the diffs from each user’s page into a collated meta-view. That might be a bit trickier
– GreyWulf 2007-03-13 22:29 UTC