Well, we're doing a pilot project at the TTRAG event to record each presentation and make them available (for a fee, of course) via the web, at any time after the event.
This is an expensive service, but we have promised the provider that if it is a success at the TTRAG event, we will do it at a much larger scale (and expense) for the Colordao event.
Would you pay $10-20 for the opportunity to see and hear a particular conference presentation via the web? This is an archive, not a broadcast service, so you could whatch the program whenever you wanted.
Would you pay $75-$100 for unlimited access to all conference presentations for a period of time?