Twitter vs. FriendFeed
There is a good conversaiton taking place on Twitter/FriendFeed and on TechCrunch about the monopolistic power of Twitter as a microblogging platform and how an aggregator like FriendFeed fits into the mix.
I agree with Michael Arrington (TechCrunch) that Twitter and FriendFeed are different. They serve different purposes. Since all conversations lead to Facebook lets put the discussion in that context. Twitter = Facebook status updates on steroids — leaning more toward group I
M. FriendFeed = Facebook news feed. Robert Scoble is right. If you pay close enough attention to FriendFeed or your Facebook news feed, you can make out a conversation, IF you are following enough 
people.
Twitter + FriendFeed = Facebook
What could be more interesting is when there is a disqus-like comment client for twitter that links 
comments on sites like TC and others to Twitter and by extension, FriendFeed. This would capture the conversation Mike and Scoble had both in the comments of this post and tie them to the ‘offline’ conversation they had on the same topic on Twitter.