aims to be a secure IM for multiple platforms. Keep in touch is an attempt to create a secure instant messenger - it supports its own XML based protocol aswell as ICQ and AIM
brings IM (instant messaging) to IRC clients. For people who have an IRC client running all the time and don't want to run an additional MSN/AIM/whatever client. Currently supports XMPP/Jabber (including Google Talk), MSN Messenger, Yahoo! Messenger, AIM and ICQ.
Spark is an Open Source, cross-platform IM client optimized for businesses and organizations. It features built-in support for group chat, telephony integration, and strong security. It also offers a great end-user experience with features like in-line spell checking, group chat room bookmarks, and tabbed conversations.
Combined with the Openfire server, Spark is the easiest and best alternative to using un-secure public IM networks.
Miranda IM is a multi protocol instant messenger client.No bloat, it\'s Easy and Small! Miranda IM is designed to be resource efficient and easy to use. It uses very little memory and requires no installation.