MySpace may not be the hottest thing in social networking any longer, with visitor numbers and page views decreasing at an alarming rate, but apparently its free music streaming service MySpace Music is still something of a hit. According to Nielsen data (PDF) for June 2009, traffic to MySpace’s music subdomain has grown 190% since its launch in September 2008 and year-over-year traffic to the URL has increased a staggering 1,017%. This traffic includes at least one visit by our own MG Siegler , who was happy to learn Pearl Jam's new single premiered exclusively on the service.