More information can be found on the Hack/Doc home page: http://www.clamp-it.org/events/moodle-hackdoc-fest-summer-2015/
Virtual Attendance: In addition to the conventional Hack/Doc Fest, we’re planning on coordinating a virtual component to Hack/Doc Fest that will allow people to participate from their own campuses on a limited basis.
Note: There is no registration fee for Hack/Doc Fest. That said, this is a "pay your own way" event; attendees will be responsible for their own lodging, transportation and food. The college will provide a light breakfast and lunch each day of the event.