FriendFeed has released a v2 of their API. Check out Scoble and Dave Winer's conversations. I always considered FriendFeed a nuissance. It seem to get popular fast and disappear even faster. Now, I rarely see it anymore. Looks like a great API, but I've never understood the usefulness of the website.
http://friendfeed.com/api/documentation
http://blog.friendfeed.com/2009/07/friendfeed-api-v2-real-time-oauth-file.html
http://scobleizer.com/2009/07/20/what-does-loic-think-of-the-new-friendfeed-20-api/
http://friendfeed.com/davew/a7ba6187/friendfeed-api-v2?embed=1
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