Rxpd plugin for XChat is a plugin for the XChat IRC client which lets users filter the incoming conversation with the RegexPolicyDaemon. This is used to ignore spam, trolls, and other abusive content (at the user's option). People can publish their ignore rules and then filter or merge published rules from friends into their own rules, thus providing a distributed peer to peer system.
MiniIM is multi-protocol instant messaging client. It is based on J2ME and thus targets the MIDP2 supported platforms (commonly found in the mobile devices). It is inspired by the popular Pidgin (Gaim) program. The design is concentrated on the protocol level abstraction and an easy way to integrate new protocol implementations. The interface design is unaware of the underlying protocols.
RapidInformer is a notification system that empowers people to stay connected and take control of the information flow. It enables users to control all notifications they will receive from a single Web application in a consistent manner rather than dealing with different capabilities of each enterprise application, and work with enterprise systems by executing commands directly from instant messaging clients (or the Web application).
Baraza is a free mobile instant messaging server for Linux, supporting the Open Mobile Alliance's Instant Messaging and Presence Service (IMPS) protocols (also known as "Wireless Village"). IMPS is supported natively by a wide variety of mobile phones (particularly Nokia and SonyEricsson). The server also supports Jabber/XMPP messaging for inter-domain message exchange (a.k.a. federation).