Adium

Adium is a free instant messaging application for Mac OS X, released under the GNU GPL and developed by the Adium team.

Supported protocols

• AOL Instant Messenger (Including ICQ and .Mac)
• Jabber (Including Google Talk)
• MSN Messenger
• Yahoo! Messenger (Including Yahoo! Japan)
• Bonjour (Compatible with iChat)
• Gadu-Gadu
• Novell Groupwise
• Lotus Sametime

Notable Features

• OTR Encryption

• Tabbed Messaging
• File Transfer
• Webkit Message Display