9 Videoconferencing systems comprising video screens, software and downloadable web-based software applications for real-time multimedia and multiparty communications over computer networks; videoconferencing apparatus and equipment, namely, video screens, software and downloadable web-based software applications for real-time multimedia and multiparty communications over computer networks; software and downloadable web-based software applications for real-time, multimedia and multiparty communications over computer networks; apparatus for the reception, storage, reproduction, playback, recording and transmission of sounds and images, namely, cameras, microphones, television monitors, video monitors, computer monitors, desktop video systems comprising video screens, software and downloadable web-based software applications for real-time multimedia and multiparty communications over computer networks, amplifiers, echo cancellers, sound mixers, loudspeakers, remote control transmitters, television sets, radio sets, compact and video disc players, memory-based media players, telephones, video telephones, mobile telephones and portable telephone terminals; software applications and downloadable web-based software applications for communication, interaction and data sharing; analog to digital and digital to analog converters; systems comprising software and downloadable web-based software applications and equipment for digital broadcasting of audio, data and video across cable, satellite, terrestrial, Internet Protocol and telecommunications networks; systems comprising software and downloadable web-based software applications and equipment for streaming of audio, data and video across cable, satellite, terrestrial, Internet Protocol and telecommunications networks; systems comprising software and downloadable web-based software applications and equipment for communication infrastructure, namely, communications servers, data archives, multipoint control units, electric switches, audio mixers, gateways, gatekeepers, firewalls and network management software; systems, equipment and software for security, encryption and authentication of data, namely, computer software for authentication and encryption, and electronic encryption units, computer hardware and downloadable computer software for management of time, appointments, schedules, assets and meeting room management; downloadable electronic publications in the nature of books, manuals and brochures in the field of videoconferencing; electronic publications, namely books, manuals, brochures in the field of videoconferencing, recorded on computer media