Why not create a forum titled Cross Training and subsequent child forums that relate to the specific sport you cross train for?
Example:
Cross Training -> Moto
Cross Training -> Cycling
Cross Training -> Rock Climbing
Cross Training -> Couch Potatoes
The benefits:
Moto people (like me) can converse and stuf in a "dedicated" area w/o poluting other more general forums.
Moto people (like me) can find specific other groups and what they like to do i.e. reading how the cycling groupies train and find useful.
The point isn't to segregate and classify, but focus in on sport-specific training routines used by those in the same sport.
I think it's a D-Y-N-O-M-I-T-E idea!
