The GIS Day 2013 event is free and open to the public. It plans to provide free lunch (pizza while it lasts), giveaways (e.g., T-Shirt, Frisbee, etc.) and the chance to win door prizes including an Apple iPad. We would appreciate your registration if you plan to attend it. Such information will help us to plan how many pizzas to order for the event, and to inform you any changes in the agenda. We also welcome your comments, suggestions and feedback to the event.