More on-demand tunes, playlists from Grooveshark
Count on CNET readers to set me straight: within minutes of my post about Just Hear It, two people had e-mailed me about Grooveshark, which not only offers on-demand playback of millions of songs, but includes album art, fully functional playlists (complete with a very useful "add to queue" feature), and a chart of most popular plays. Equally important, the site displays advertisements, which means that somebody is collecting money, presumably to disburse to the artists whose music is played through the site. This, along with the fact that Grooveshark's been operating for more than two years, reduces the chance that you'll suddenly find it gone overnight.
But Grooveshark isn't new to CNET: the Download blog first covered it back in September 2007, News.com wrote about the service's addition of widgets and uploads back in October, and Digital Home blogger Don Reisinger listed it as one of the top five music streaming services last December.
Matt Rosoff is an analyst with Directions on Microsoft, where he covers Microsoft's consumer products and corporate news. He's written about the technology industry since 1995, and reviewed the first Rio MP3 player for CNET.com in 1998. He is a member of the CNET Blog Network. Disclosure. You can follow Matt on Twitter @mattrosoff. 
We all know how 'powerful' the internet/social media can be, but this really struck me. What a perfect paradigm of what I love about people, music, curiosity, and communication.
If you guys are reading this, we love you. And if there's absolutely anything I can do to help out--or if you just want to chat--please please prettyplease ping me: http://twitter.com/grooveshark .
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ben+grooveshark