GigaOM writes, From music videos to Evolution of Dance, dance has always managed to find an audience in the online video world. But DS2DIO, one of the more recent entries in the YouTube channel initiative, aims to become a central hub for the wealth of dance-related content out there. Founded by director Jon M. Chu and producer Hieu Ho, DS2DIO (pronounced “D-Studio”) brings together a wide array of dance-oriented content, from the b-boy competition series The Arena to dancing showcase S2DIO CITY. Chu, whose work includes the second and third Step Up movies as well as the upcoming G.I. Joe:...