PIDGIN - a universal IM software

Pidgin is an easy to use and free chat client used by millions. Connect to AIM, MSN, Yahoo, and more chat networks all at once.
Supported chat networks:

• AIM
• Bonjour
• Gadu-Gadu
• Google Talk
• Groupwise
• ICQ
• IRC
• MSN
• MXit
• MySpaceIM
• SILC
• SIMPLE
• Sametime
• XMPP
• Yahoo!
• Zephyr

To download click here