This site is run by the Ski Club of Great Britain and is a really handy tool for finding out about resorts or, particularly if you're trying to decide where to go at the last minute, what the current snow conditions are like at hundreds of ski resorts around the world. If you want to find a resort best matched to your ability or interests (which are best for families, which have the most sustainable policies, which are the most upmarket and so on), this is the place. You don't have to be a member to use most of the search options.
Like that? Try www.natives.co.uk