[Downhill, Slalom, and Longboard Skateboarding - Ncdsa.com Ncdsa.com is an active online community of downhill skateboarders that features lively discussion forums covering slalom, longboarding, speedboarding, street luge, pools & parks, as well as equipment reviews on all the latest gear. Renowned for its freewheeling pub-like atmosphere, its a place to hang out, speak out, and take in all things old school. Ncdsas members post from all over the world and range in age from five to fifties. Established in 1996, Ncdsa is one of the Webs oldest and largest online skateboarding communities and is proud to have continuously promoted helmet usage and riding safety since its inception.]