JD Lasica pointed this out nice PDF related to conference planning.
Nice mention of video blogging as important part of events.
"Historically, social networks and like-minded Web 2.0 tools empower
users to keep in touch with the thousands of people they�ve collected
in their contact database. Without applications like social networks,
blogs, micro-blogs, photo sharing, podcasts, video blogs, and of
course email it would be impossible for anyone to stay in touch with
so many people."
Here's a link to the html version (rather complex navigation compared
to the PDF).
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