I visit several others but in general find them irritating. What's nice about this forum, besides the great company, is there is a category for off topic just like we're doing now. The other ones purport to be machining forums but every fifth topic has the disclaimer, OT, in front of it. How can discussing why some cars are junk and others sent by the Gods have anything to do with machining. It's really amusing because those type of topics get more action than the ones related to machining. It seems that these people should start a gripe forum to keep themselves happy. Anyway, there are and have been several other forums directly related to model engines, not Yahoo groups. I think most of their people have made their way over here or they just lost interest in the other forums because when I clicked my bookmark for them they're no longer active.
gbritnell