We sent out a big email blast to everyone this morning (noon Eastern time), and if you didn't get it it's because (probably) your corporate email is block-block-blocking us. You're welcome to sign up a personal email address at http://eepurl.com/cEcNlT, if you'd like. We'll also continue to post communications in the #summit-events channel in the Slack team. A PDF of this morning's email is here, although this'll be the last one we post publicly.
That mailing list and our Slack team are going to be our best way to communicate with Summiteers, so make sure one of them is working for you.