There’s a great article on Links to Free Music that area completely legal. MichaelCrawford is a great poster on one of my favourite “thinking” News/Article/Information sites Kuro5hin.org. His two sites have terribly ugly layouts, but they are very well written from what I’ve seen, and I think you should read the article that I linked to in my first sentence, if not only for the information, but the way that he writes. I admire him as someone that actually puts some effort into his writing, and then gives it away - then there’s the fact that he has some serious mental issues (can’t remember the name, but it’s an amazing story of living through some strange things that happen to people’s brains.)
(Update 30/4/16 - Link to article was http://www.kuro5hin.org/story/2003/9/5/05113/70314 but it broke when Kuro5hin went away.)