I’ve just stumbled across Grooveshark for the first time, and I have to say, I’m impressed! It has an ever-growing user base feeding more and more music into it, which you can pay to download or stream for free, legally. I’ve found it easy to get some great music out of it, and just finished listening throughout all of The Cure - Faith, Marvin Gaye - What’s Going On and Joy Division - Unknown Pleasures without any problems. The biggest issue I’ve had with it so far is that, thanks to badly labelled files being shared, there’s often multiple entries for the same song under the same album. This is easily overcome though - line up each song (I use Wikipedia to get the right tracklisting) and save the album as a playlist on your account and you’ve got a permanent, ordered album to be played whenever.

So far, I think that this must be the best free & legal music source I’ve seen. While Pandora & Last.fm are great for finding new music, Grooveshark gives you quick and easy access to all your favourites, anywhere. Including the entire Broken Social Scene back catalogue. Bonus.