Museek-Plus is a program-suite for the C++ museek daemon, a Soulseek/Soulfind P2P client. It includes the QT GUI, Museeq, and the Python/Curses TUI, Mucous. It supports chat, transferring files, searching, user-management shares browsing and more.
Concurrence is a networked file editing program that enables multiple people to modify a document simultaneously. It is written entirely in Python, and uses the wxPython library for the GUI and the Twisted library for networking.
Valuhack is a collaborative effort of a variety of newsgroups to port a simple program to as many languages as possible, while maintaining the true spirit of hacking.