didn't realize SkiNH was a membership site. No idea if tenney participates.
It's the state trade group, much like the Vermont Ski Areas Association. The organization represents the industry and promotes it. Much like VSAA, members pay dues. IIRC there was something said on here about 10e's lack of participation, in particular a couple years ago when they decided "not to open" for the season, folks had bought the SkiNH passes and had 10e tix which were no good. They burned a lot of people that season. I can imagine that SkiNH probably doesn't miss them.