yahoo messenger

Top Secret Messenger.

Internet phone and instant messenger (was SIP Communicator).

Chat with your Facebook friends on your Mac (was Facebook Messenger).

OpenC6 is a Linux and Mac OSX free instant messenger.

Video conferencing and instant messenger.

Instant messenger.

Collanos Phone is a VoIP softphone and multi-protocol Instant Messenger.

iFire is a unofficial client of the popular gaming instant messenger Xfire

Collanos Phone is a VoIP softphone and multi-protocol Instant Messenger

Universal Instant Messenger & Photo/Music Sharing to MSN-Y!-AIM-ICQ-Jabber-IRC