I'm a sophomore, and I know a fair number of people my year and above who ride, but the scene is pretty fragmented here. There is more than one related organization. The race team, the ski school, and what is basically a casual ride share are what you have to choose from. The people I know aren't part of any of that for the most part, because they're not that good for what we do.
Best options for skiing are Snoqualmie and Stevens passes. Both have college passes for ~$300, and I and most of the people I ride with have a pass to both this year.