Colloquy (software)
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What links here
Comparison of instant messaging protocols
SILC (protocol)
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End-to-end encryption
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Comparison of cross-platform instant messaging clients
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Presence information
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Skype
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Gadu-Gadu
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TOC protocol
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Adium
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Miranda NG
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IChat
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Kopete
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OSCAR protocol
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Yahoo Messenger
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XMPP
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Pidgin (software)
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Online chat
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Windows Messenger
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Microsoft Messenger service
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Trillian (software)
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Instant messaging
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SMP
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ICQ
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IRC
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