BBM try here: http://www.eham.net/forums/Elmers
an "Elmer" is a teacher/mentor of ham radio. Not Sure of the origin of the term. The Elmer's Forum is the general "ask an expert" forum here, also the most active forum, there are other forums for "ask an expert" on specific topics (e.g. satellites) and ones for more general discussion topics, e.g. this one aimed at youth operators/operations.