Instant Messenger

Empathy is an instant messaging program that lets you talk to your friends on the AIM, MSN, Google Talk (Jabber/XMPP), Facebook, Yahoo!, Salut, Gadu-Gadu, Groupwise, ICQ and QQ as well as on many other instant messaging networks in one program! It supports text, voice, video, file transfers and inter-application communication over many different protocols. Empathy is already installed on your computer unless you've removed it. Just go to Applications -> Internet -> Empathy IM Client and enter your user name, password, and select the network you wish to connect to. Be it AIM, MSN, ICQ or one of the other popular networks.

GYache supports most of the features you would expect to find in the official Windows Yahoo! client-but with some value added enhancements. Some of the traditional features found in the Yahoo! client that are supported include: Voice chat, webcams, faders, 'nicknames', audibles, avatars, display images, and more. One of the unique features of GYache is it remains very easy to use and fast.

Sim-IM is a multiple protocol instant messenger with support for Jabber/XMPP, Google Talk, ICQ and AIM (Oscar), Yahoo! Messenger and Microsoft Messenger (MSN).

It features:

* Receiving and sending SMS;
* Server-side contact list;
* Receiving and the sending messages in RTF-format;
* Phone directory support;
* File transfers;
* Chat;

And many more. See website below for details.

Psi is a instant messaging application designed for the Jabber IM network (including Google Talk). Fast and lightweight, Psi is fully open-source and compatible with Windows, Linux, and Mac OS X.

Pidgin is a chat program that replaces AIM, MSN, Google Talk, Yahoo! and other instant messaging applications. You can log into your AIM, MSN, and Google Talk accounts and chat with people on different networks simultaneously.

Pidgin supports many features of these chat networks, such as file transfers, away messages, buddy icons, custom smilies, and typing notifications. Numerous plugins also extend Pidgin's functionality above and beyond the standard features.

Kopete is an instant messenger client that allows you to communicate with users of AIM, ICQ, MSN, Yahoo, Jabber, IRC, Gadu-Gadu, and Novell GroupWise Messenger, among others. It is designed to be a flexible and extensible multi-protocol system suitable for personal and enterprise use.

KMess is an alternative MSN Messenger chat client. It allows users to chat with friends who use MSN Messenger. The strength of KMess is it's integration with the KDE desktop environment, focus on MSN Messenger specific features and an easy-to-use interface.

Chat with friends using MSN Messenger, enjoy our great features:

* Display picture transfers
* Fast file transfers

Gajim is an instant messaging program with the goal of being a full featured and easy to use Jabber client.

* Tabbed chat window and single window modes
* Group chat support (with MUC protocol), invitation, chat to groupchat transformation, minimize groupchat to roster
* Emoticons, Avatars, PEP (user activity, mood and tune)
* File transfer, Room Bookmarks

Emesene is a nice and simple MSN Messenger client. It tries to be similar to the official client, but with a simpler interface and a nicer look.

Emesene features:

* Clean and easy to use GUI
* Tabbed chat
* Custom emoticons
* File transfers
* Offline messaging
* Personal messages
* Nudges
* Multilingual GUI
* Customization
o Themes

aMSN is a MSN Messenger clone, with features such as:

* Offline Messaging
* Voice Clips
* Display pictures
* Custom emoticons
* Multi-language support (around 40 languages currently supported)
* Webcam support
* Sign in to more than one account at once
* Full-speed File transfers
* Group support
* Normal, and animated emoticons with sounds