Why FriendFeed is growing faster than Twitter (Scripting News)
http://www.scripting.com/stories/2008/07/06/whyFriendfeedIsGrowingFast.html
"It's all part of one cosmos (not a mere sphere), and there will come a day (I hope) when it all is unified, otherwise we're forever going to be chasing our news from place to place as it gets replicated in ever more awkward ways."