Though the battered economy has caused the cancellation of events in other sports, as well as the folding of the Saab/Salomon Factory Team, North America’s biggest ski races appear to be weathering the storm. While it is still early in the year, organizers of the American and Canadian Birkebeiners, City of Lakes Loppet, Craftsbury Marathon, Yellowstone Rendezvous, Noquemanon Ski Marathon, and Mora Vasaloppet all said that their races were proceeding as planned. Many did say,...