Rendezvous is written in Java and provides a GUI for human collaboration (chat, instant messaging, audio video conferencing, etc.). It is a client for the DataShare server (http://datashare.sourceforge.net). Try the Rendezvous demo link on the Home Page
DataShare is a Java-based server that waits for clients to connect to a Channel (socket), then forwards any received data to other clients in that Channel. See the <a href="http://rendezvous.sourceforge.net">Rendezvous</a> project for client code examples
Novus Ordo Seclorum (Ordo for short) is a pathologically secured, invitation only secure communications framework. It is built on top of the Freenet
crypto libraries.