The RavenDB community is very active, and usually hangs around the mailing list. Most inquiries are answered within minutes by the community or RavenDB developers.
The RavenDB room on JabbR is pretty active as well, and is definitely a cool place to hang around in.
We are doing a webinar every few weeks, usually with a Q&A session in the end, and we poll the community for topics. So if there is a topic that interests you, fill free to ping us with it, or raise it in the Q&A session of one of the webinars.
Webinars are recorded and uploaded to our YouTube channel, as well as other videos like webcasts, recorded conference talks, and customer interactions.