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Simple Update Protocol, or SUP, is a protocol developed by FriendFeed to simplify and speed up RSS and Atom. A number of websites have started to provide support for SUP, meaning that updates from their services appear in FriendFeed within seconds. [1] These sites include YouTube, Disqus, Brightkite,, Backtype and[2]


  1. ^ Paul Buchheit. Simple Update Protocol: Fetch updates from feeds faster, FriendFeed Blog, August 27, 2008.
  2. ^ Paul Buchheit. Simple Update Protocol: Update, FriendFeed Blog, December 18, 2008.

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