Pidgin : Free Instant Messaging tool
Pidgin is an easy to use and free IM client used by millions. Connect to AIM, MSN, Yahoo, and more IM networks all at once.
Pidgin is an IM program which lets you log in to multiple accounts on multiple IM networks simultaneously.
This means that you can be chatting with friends on AIM, talking to a friend on Yahoo Messenger, and sitting in an IRC channel all at the same time.
Pidgin supports many features of the various IM networks, such as file transfer, away messages, and typing notification.
It also goes beyond that and provides many unique features. A few popular features are Buddy Pounces, which give the ability to notify you, send a message, play a sound, or run a program when a specific buddy goes away, signs online, or returns from idle; and plugins, consisting of text replacement, a buddy ticker, extended message notification, iconify on away, spell checking, tabbed conversations, and more.
Supported IM networks: