Everyone open a separate conference for each person!
I smell Epic!
I have an idea though:
Why don't we set up some sort of text-based messaging system, hosted on a web server somewhere, where people can type in whatever they want to say, that way it will sort of be like having a conversation, but people can say things whenever they want. All the...well we could call each individual text message a "post". These "posts" would then be ordered in a sequential fashion in order of when they were "posted" and would therefore be readable as a collective conversation between many people at once?
This would also solve the bandwith problems of trying to have a massive online group meeting!
I'm sorry, it's not funny at all, I know.