I think the consensus so far was for a slow chat format. 5 days and 5 questions round a theme. Based on Twitter and hosted by a person or a group of volunteers. On Sunday all the chat and links are collated into a blog post.
But I think we can be as creative as we want to with this. potentially link in with events like RadioEdTalk, TeechMeets, Pedagoos, conferences etc. – And encourage parental, student and 3rd sector groups to lead the discussion too.