Opening speaker and
B4B organiser Matthew Yeomans just got up on stage to set the scene, saying the emerging world of niche or fragmented media, coupled with the former audience's new ability to talk back and publish for themselves, is ushering all the stuff we're going to hear about today.
Well, he didn't say it quite that way, but I can't touchtype fast enough to get it all verbatim so that's the gist of it.
Here's an animated if scary photo of Matthew in action:

-- Rob