-> Network discovery with 100% hit in any ethernet-based network / -> Supported operating systems: Linux, Mac OS (Snow Leopard included), Windows (Vista and Windows 7 included)/ -> MAC address gathering
BigBlueButton is an open source web conferencing system. BigBlueButton is mainly used for distance education.BBB supports sharing of slides (PDF and PPT), video, whiteboard, chat, voice (need speakers and a microphone to participate), and desktops. It’s built using over fifteen open source components. BigBlueButton runs on Mac, Unix, and PC computers. BigBlueButton uses red5 the open source implementation of Adobe’s Flash Media Server. One of the god feature of BigBlueButton is that multiple users can share their web-cam at the same time. There is no limit for this. On Linux machines BigBlueButton can be installed either from source code or from Ubuntu packages.
source : http://www.bigbluebutton.org