Lynn,
I found that having a space for discussions before, during, and after the online conference made the experience worthwhile. I found the following technologies appropriate for such discussions: Moodle, facebook, and Ning. I didn't like Google or Yahoo groups for the discussions.
I would like to see changes in the way live online conferences and online classes are conducted but the technology that is available is keeping me behind. I have mostly presented/participated in Adobe Connect, Elluminate, Webex, GotoMeeting, and WiZiQ. Only the team at WiZiQ have listened to my suggestions on how to improve the platform. The CEOs behind the technologies available for webinars don't seem to see the need for change. I get the feeling that no one is demanding changes and the companies are making enough profits as is, so why bother. For example, I have tried to interest Adobe Connect and Elluminate to make changes to cater to Arab & Hebrew, which are both written from right to left, but they refused. As a teacher/facilitator/instructor, I would like the virtual rooms to cater to my needs and they are behind. They are forcing me and some of my colleagues to teach in traditional ways that are no longer suitable for our students. I would like technology to serve my needs and fail to understand the point of using old ways with new technologies.