According to the official Geek Girl Con website here is where you'll be able to find Amber across the weekend:
Panel Deconstructing the Mary Sue Myth [Sat: 10:00 - 10:50], Media Signing: Amber Benson [Sat: 11:00 - 11:50]
Good news is if you're in the area there is still passes available to the event for full details and how to secure your passes please see the official Geek Girl Con website.
I apologise for the short notice given that the event is this weekend I should have posted earlier however just lately life has a habit of getting in the way of me updating this site.
Disclaimer: AmberBenson.TV is not involved in any way with Geek Girl Con this post is for informational purposes only.