Grooveshark is the most inclusive and fully-featured on-demand music service on the Web. With an unmatched catalog of music, millions of users flock to the site to listen to their favorite artists as well as discover music and share tracks with friends.

Listening to any song instantly, creating playlists to return to later, or simply accessing a quick favorite song are the fundamentals of Grooveshark's offering.

How are they capturing marketshare?

Grooveshark delivers the world's music to the world more easily than any other site online and receives its support from advertising as well as a premium VIP subscription service. In fact, visitors and subscribers can opt out of advertising for $3 per month. 

Also, the much anticipated Grooveshark Mobile applications will further monetize the service and Grooveshark's unique and innovative platform for breaking artists keeps it one step ahead in being a competitive, sustainable and profitable business.

Bottomline, these guys are awesome and you need to check them out! 

Features – see how unique and differentiated Grooveshark is relative to other music on-demand sites 

Free Stuff – all types of wallpaper from Abstract to Shark wallpaper free for download

Join Now – fast, easy and worth it!

Best,

Denice MacDonald 

[Source info and company background taken directly from Grooveshark]