Calling all Yelpers, the ubiquitous website is hosting the ultimate holiday kickoff party December 11-14 in Aspen Snowmass. Billed as Yelp's "Winter Break," the four-day weekend event aims to bring together Yelpers from across the country for discounted lodging, lift tickets, and a whole slew of fun events. Check out the full lineup and schedule here. [Curbed Ski]