[Juser] Are there any more XMPP services, or is Jabber the only one?

[Gabriel]

I'm asking this out of pure curiosity.
Does Google Talk uses the XMPP protocol?
Are there any more XMPP services, or is Jabber the only one?
If so, which ones?

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ATENÇÃO:
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Cumprimentos,
Gabriel

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Greetings,
Gabriel

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