x11vnc allows one to remotely view and interact with real X displays (i.e. a display corresponding to a physical monitor, keyboard, and mouse) with any VNC viewer. It is designed to be compatible with all Unix variants and Mac OS X, and depends on a small set of standard libraries. It supports SSL/TLS and VeNCrypt encryption, Unix password logins, single port access, Zeroconf, file transfer, and UltraVNC extensions. It is part of the LibVNCServer project.
xIrc is a QT based IRC client featuring individual windows for each conversation, channel member lists, full DCC chat capability, DCC file get and send capability, a subset of the standard IrcII commands, many with simplified interfaces, automatic ban mask generation for easy and reliable banning, notification lists, ignore lists, mIrc colors, optional CTCP2 protocol (except fonts), and full documentaion in ASCII and PostScript.
xLightweb is an easy-to-use HTTP network library to build high performance, highly scalable network applications in Java. xLightweb provides a simple and intuitive API to write client side HTTP applications as well as server side HTTP applications. In contrast to the Servlet API, xLightweb is not only focused on server side programming. xLightweb also supports client side programming by providing high-capacity client side classes such as an HttpClient. It supports both blocking/synchronous programming as well as non-blocking/asynchronous programming.