IM or Instant Messaging (usually referred as IMP or Instant Messaging and Presence) is a type of application for chat and presence – most popularly on proprietary networks such as MSN Messenger (now called Windows Live Messenger), YahooI Messenger, AIM, Gadu-Gadu, QQ or ICQ.
One of the most popular open source IM platforms is Jabber (also known as XMPP), this is used by Google Talk, Gizmo Project and WengoPone (OpenWengo) and is widely deployed for intranet instant messaging.
Despite the fact that most IM is conducted over proprietary networks owned by Yahoo!, Microsoft or AOL/Time Warner and others, open source clients for these networks exist, most popularly Psi, Gajim and Spark for Jabber/XMPP or Kopete and Gaim for multi-protocol IM (or Adium for OSX which uses libgaim).
IM
instant-messaging
Jabber
open
imp
xmpp
opensource
standards
Jabber is an IM platform designed to be open, fast, and easy to use and extend.
IM
instant-messaging
Jabber
open
imp
xmpp
opensource
standards
License:GPL