A videoconferencing system configured to utilize peer-to-peer videoconferencing software to provide a multi-participant conference environment for a plurality of participants is provided. The system includes a client component defining a conference client enabled to execute peer-to-peer videoconferencing...http://www.google.de/patents/US7362349?utm_source=gb-gplus-sharePatent US7362349 - Multi-participant conference system with controllable content delivery using a client monitor back-channel