The Twitch channel has users 24/7 due to timezones and is a great place to talk with the community. Remember twitch chat rooms on the right are IRC channels if you want to use your own chat application.
The official forums hold a section which users can make their own tutorials and walk-throughs. Make sure to check it out! To create a guide, log-in with your MS account, then press the pencil-paper icon on the top right side of the window.