Jabber

Jabber may refer to:
 * The original name of the Extensible Messaging and Presence Protocol (XMPP), the open technology for instant messaging and presence.
 * Jabber.org, the public, free instant messaging and presence service based on XMPP.
 * Jabber XCP, a commercial product which is an implementation of XMPP. Acquired by Cisco Systems in 2008.
 * An abnormally long transmission on an Ethernet network or link.