The most popular open source web conferencing system, BigBlueButton, has been released in its 0.9.0 version to the community. BigBlueButton has accumulated over 100,000 plugin downloads from Moodle.org in the last year (which is more than all of the other conferencing tool plugins available in the plugin database combined).
This twelfth release brings with it the ability for facilitators to start and stop recording, pre-check for users entering the session, and improved usability for Chrome browser users.
Download the plugin for Moodle 2.6, 2.7 and 2.8 at https://moodle.org/plugins/view/mod_bigbluebuttonbn
Read up on the full release notes for v0.9.0 at http://bigbluebutton.org/2015/04/30/bigbluebutton-release/