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Extensible Messaging and Presence Protocol (XMPP): a set of open XML technologies for presence and real-time communication developed by the Jabber open-source community in 1999, formalized by the IETF in 2002-2004, continuously extended through the standards process of the XMPP Standards Foundation, and implemented in a wide variety of software, devices, and Internet services.
* はてなダイアリーキーワード:xmpp