A personnel location control system for controlling and guiding a group of individuals in a selected path to a waiting point and then to an activity in advance of that waiting point. In one embodiment, a method forming a via in a glass substrate includes laser drilling the via through at least a portion of a thickness of the glass substrate from an incident surface of the glass substrate. The invention also allows an internal content provider to create a personal profile of a user, based on proprietary data stores of the internal content provider andor on the user’s choices of data for viewing on a web page.