Another skibike that uses snowboards for skis.
Recreation, Outdoors, Snowbiking - Snowcross bike. Another skibike that uses snowboards for skis.
http://www.snowcrossbike.com/
Snowbiking
Federation International of Skibobs
Recreation, Outdoors, Snowbiking - Federation International of Skibobs. Information on skibobbing from Europe, skibobbing history, and photos, and the race schedule for the upcoming season.
http://www.skibob.org/
American Ski-Bike Association
An informational and educational portal encompassing all aspects of skibiking.
http://www.ski-bike.org/