Glu4D is an audio-video communication tool that allows distributed users to communicate and share resources. All the virtual environments have been rendered using Ogre.
Glu4D is different from other communication systems in that you are all embedded in a shared virtual world and the system is designed to be "always on" so that you can have spontaneous interactions and it doesn't have to be formal, unlike video conferencing or Skype, etc.
It also allows users to interact with shared resources at the same time, for example you can all view a webpage together regardless of your physical location.
More details are available on the website. http://www.glu4d.com
A few screenshots:-



Please let me know what you think.
Thanks.