Since it's a long weekend Monday, we're taking the opportunity to do some system maintenance.
Online scheduling will therefore be unavailable today until probably around 5pm or so. We'll be targeting 100% up-time in the future, but for the moment, we need to do a bit of work to ensure our systems are running smoothly.
Thank you for your patience. If you're seeing this message, kindly check back tomorrow (or later tonight).
*edit* - As of 12:23AM EST, August 5, 2014, everything is back up and running!