Xivio.com was a commercial children's virtual world website created in 2006 by Gavin Conrad. This is the legacy World Server Java Core made available to the world to do with as it wishes.
MeetingPoint is a modular cross-browser realtime collaboration and conferencing environment. It provides Flash web meeting with audio/video conference, shared whiteboard and slideshow presentation, chat, polls, etc. Full Moodle integration.
Red5chat is an opensource project of a video chat written in Action script AS2 (flash7) using the RED5 flash server. It allows private/public chat with audio and video through an Flash interface
A self-guiding Flash front-end with a 100% Java-based XML parsing gateway that combines the look and functionality of a streaming game client with a background processing system for handling distributed data packages.