The Efnet IRC Yoga chat room is the largest, oldest serious chat room for all Yoga topics. You can connect to it through the link above, an IRC client program, Mibbit chat network, or the Know Buddhism site. The chat room started in the mid-2000s and is open to the discussion of Yoga in Indian philosophies & religions, modern Yoga, and, to some extent, ecumenism involving Yoga. The rules are to be polite. The room has a homepage.