Here is the community we used last year for Sage Summit. I think we'll use it again this year as it's a great place to post photos and other things that would otherwise greatly clutter up Socialcast.
I'll post an announcement soon. We will also use Google Hangouts for members who want to communicate via messaging during the event. Vegas is a lot more spread out than any prior conference since maybe Denver or Palm Springs. I think it's important we establish a common place to communicate early on.
https://plus.google.com/u/0/communities/107517138465908981244