Boomershoot 2013 registration opens up for everyone Saturday July 7 at 12:00 noon Pacific time.
Entry is done all online on this web page: http://entry.boomershoot.org/.
You can see which positions are still available here: http://entry.boomershoot.org/available.aspx.
Boomershoot is nearly 70% full with just returning staff and Boomershoot 2012 participants. If you want to participate you should be ready to do it at 12:00 as it is likely to fill up fast.
Update 2030 PDT: There was a flurry of last minute entries from staff and Boomershoot 2012 participants and now Boomershoot 2013 is 72% full with only 21 positions still available.