Check this out. There is a Google snowmobile now, mapping ski runs for us. Just in time for the SkiTheGlobe site I just got done building for a client: http://skitheglobe.com/resort/
http://skitheglobe.com/resorts/ is a really cool resource. There are 1200 or so resorts stored here, world wide. Its easy to filter, and drill down to the resort of choice. It also has a live weather report that is integrated with the geocoding that is produced by mp GoogleMaps plugin, Automagically.