This is a network visualization of artists whose songs have appeared on the Billboard's Rap Airplay Chart. Lines connecting circles represent two artists appearing on a song together. Hover over a circle to see who it is (highlighted in red), and to see other artists that artist has collaborated with (highlighted with a blue ring). The size of the circle is based on that artist's influence score (eigenvector centrality).
The graph can be dragged (click and drag), and zoomed (double-click to zoom in, shift-double-click to zoom out, or scroll on a multitouch pad). Thanks to Paulo Villegas for most of the code.