Websites for Ballroom Dancers:   BallroomDancers.com - Read technical tips, search for a dance partner, and view costume ads online. DancePartner.com - Looking for a partner? Post an ad or search through profiles of other dances on dancepartner.com. DanceVision.com - Videos, music, and other supplies for ballroom dancing.   Affilated Dance Studios: Dancesport International - "Providing quality dance instruction for beginning social dancers to Dancesport athletes." Located at 12535 Lake City Way NE, Seattle, WA 98125. Website: www.dancesportseattle.com   Costumes and Shoes:   Nina's - Specializing in custom made costumes for dance and ice skating, Nina's also offers practice wear and shoes for a variety of dance forms. Website: www.ninaseattle.com Emerald City Dance Boutique - Specializing in shoes for ballroom dance. Website: www.shoesfordance.com