Instant Messengers

Nimbuzz (kan ook online) : http://www.nimbuzz.com/nl/pc/

Microsoft Live Messenger : http://explore.live.com/windows-live-messenger?os=other

Windows Live Web Messenger (online) : http://webim.live.sg/

Mercury Messenger : http://www.mercury.im/

Pidgin : http://www.pidgin.im/

Trillian (kan ook online) : http://www.trillian.im/

eBuddy (online) : http://www.ebuddy.com/

voor Apple-OS X : Adium : http://adium.im/

en honderden andere... http://en.wikipedia.org/wiki/Comparison_of_instant_messaging_clients

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MSNP protocol : http://en.wikipedia.org/wiki/Microsoft_Notification_Protocol