You enter your activity on a form linked to the main page. Sometime in july/august they take everything they have, edit it roughly and print it into booklets that are distributed at the gate. If you miss the deadline, you can still post on the website, so if you want to start planning what to see before you hit the playa, you can do it off there. Even print off your own version of greatest hits.
Simon's real sig line?
Embrace the Sock