1. Uncharted Territory: Tyler Ward and Porta Climb, Big Sean Graduates

    March 01, 2011 2:19 PM EST Surprise, surprise: Long Beach's up-and-still-coming rapper Traphik rounds out yet another week, his sixth, as the reigning king of Uncharted , Billboard's newest chart for emerging artists. The ranking features independent, never-before-charted musicians who are breaking new ground…