dxirc is a easy-to-use yet capable cross-platform IRC client. Among its notable features are flexible configuration, a fully customizable look independent of system-wide settings, multiple server support with optional automated joining of selected channels, and the ability to connect via SSL.
CodingTeam is a software forge that is lightweight and extensible. It provides a lot of collaborative tools. With this software forge, projects can benefit from basic features (such as screenshots, downloads, uploads, and news), communication features (such as chatrooms, forums, the OpenForge API, and Jabber/XMPP integration), and development features (such as a VCS code browser, a bug tracker, SVG statistics, timeline, and roadmap). Also provided are community tools (project browsing, tag clouds, notepad, and user profiles).
dd_chat (formerly known as dd_ntalk-door) is a chat system derived from ntalk to be used with the DayDream BBS. The dd_chat client is a "door" program for the DayDream BBS that provides an easy-to-use chat client for the dd_chat server. Unlike the original ntalk client / server system, dd_chat implements several features from DayDream's libdd as well as an extended command set. It integrates seamlessly into DayDream. It features private conversation, checking for remaining BBS online time, chat idle timeouts (five minutes, except when in "away" mode), support for an ANSI logo and ANSI help screens from DayDream's "display" directory, and updating user status in DayDream.
Gixaw Chat is a feature-rich system that adds live chat to your Web site. It features unlimited rooms, private and group chat, seamless Integration with any third-party application, easy file sharing, live image previews, powerful moderation (kick, ban user, and ban IP address), past chat transcripts, user profiles and display pictures, sound notifications, flood control, unlimited smileys, and a lot more.
JBuddy Messenger is an instant messaging client designed for everyday business use. It supports public instant messaging networks including AIM, ICQ, MSN, and Yahoo. With a paid license, JBuddy Messenger adds support for Google Talk, IBM Lotus Sametime, XMPP/Jabber, Microsoft Office Communications Server (OCS 2007) and Live Communications Server (LCS 2005), and the JBuddy Message Server. JBuddy Messenger offers the concept of a Meta-Buddy (Trillian calls them Meta Contacts), which is an aggregation of the presence of multiple screen names under one buddy. Also, buddy groups of the same name across multiple accounts can be visually merged to simplify large buddy lists.
JTelIRC is an advanced IRC framework for Java. It is mainly intended for writing automated clients ("bots"), but may be used for normal clients as well. It provides an intuitive and well documented Java interface to IRC and makes it extremely easy to write advanced clients quickly.