I'm gonna try doing this for the first time next week. I've been in Hangouts as a player, and I'm loosely familiar with the Roll20 interface from that side, but I have questions about the host's/GM's side. What's the interface like? What are the best practices? What sort of prep is most useful? Is there a FAQ on this? Bonus Question: What do I have to do to archive the hangout session on youtube?