Here's how to stay in touch with attendees and organizers before and during the event.
Google Groups: https://groups.google.com/forum/#!forum/wsjdata (best for pre-event communications)
Internet Relay Chat: Direct your IRC client to irc://irc.oftc.net/#wsjdata.
Twitter: Use #WSJdata and check out our Twitter list of participants at https://twitter.com/#!/WhatTheyKnow/wsjdata
Big Concerns: If you have a question about the event, contact Jen at email@example.com.