Webconf

• The GNU Gatekeeper (gnugk)
• OpenMCU (openmcu)
• OpenMeetings

• http://www.dicas-l.com.br/dicas-l/20080606.php
• http://useopensource.blogspot.com/2007/08/open-source-web-conferencing.html
• http://rapidoerasteiro.wordpress.com/2009/05/22/web-conferencia-e-tendencia/