OpenMeetings is a multi-language customizable video-conferencing and collaboration system. It supports audio/video and allows you to see the desktop of any participant. It includes a whiteboard, the ability to import a variety of image formats, invitations, a moderation system, backup and language modules, private and public conference rooms, and the ability to record meetings.
Installation is now a 30 second task. Apache Derby is now included as the default database, and no configuration is required. A sample configuration is also provided for the IBM DB2 database.
URL: OpenMeetings | Open Source Web-Conferencing