Pidgin is an instant messenger (IM) application that cover multiple protocols - including (but not limited to) AIM, ICQ, MSN, IRC, Jabber, YM!, Novell GroupWise Messenger and Lotus Sametime. These protocols can be used simultaneously to provide communication across the different networks. Additional features include file transfer, away messages and typing notification. A number of plug-ins are also available to enrich Pidgin's feature set. The Mac version is available through Fink

Pidgin was previously known as Gaim