Based on estimated traffic data from compete.com, this visualization compares November 2009 website visits for 27 popular, legal, music stream-or-download destinations. The heat map is to scale—larger map areas represent higher website traffic. Green indicates positive growth in 2009. Red indicates negative growth in 2009. Hold your mouse over each area for stats. Use Ctrl + to zoom.

Pandora is the radio powerhouse, but MySpace Music, disturbingly, has the highest traffic, and MySpace acquired both Imeem and iLike this year. iTunes is omitted here because it’s not web-based—yet—but clearly it is widely used. The top three percentage gainers were Grooveshark, Lala, and Spotify. Grooveshark has shown the most consistent growth throughout the year, and let me tell you I think it’s going to be a Jaws-like monster (especially when it goes mobile). It delivers free full-on cloud-based streaming and user uploads. Grooveshark’s iPhone app is pending Apple’s approval, but I wonder if Apple will be reluctant to approve it because it would be sharp competition with iTunes and their newly acquired Lala. It’s no surprise that Google was also looking to buy Lala—maybe they’ll turn to bite Grooveshark. Grooveshark’s minimalistic home page is even Google-esque, and there’s something to be said for simple design. Being curious as to mobile applications’ influence on website traffic, I listed available mobile apps with the sortable data below.
