mp3 - UK-friendly sites:
"eMusic is the #1 site for independent music, with a library of over 1,000,000 MP3s from more than 90,000 albums. eMusic sets itself apart from other services by offering MP3s free from copy protection. This means that eMusic customers truly own the music they download. Our MP3's play on any portable music player (including the iPod), can be downloaded to unlimited computers and allow for unlimited CD burning. Other digital music services either charge extra or do not offe..."
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""Napster has over 1,600,000 tracks. All the music you want, any way you want it. Napster members can listen to and download an unlimited amount of full-length tracks. Search for your favourite artists, discover new music and get the latest releases as soon as they come out. Members can choose from over 50 advert-free radio stations and create custom playlists to share with friends. Members can also enjoy Napster on your home stereo. It's Fast,..."
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"Over 1 billion songs sold worldwide! iTunes is the world's #1 music download store, providing music fans with the best digital music experience on PC or Mac. iTunes offers the largest and most diverse legal music download catalogue - over 3 million songs from all four major labels and hundreds of independents - so you're guaranteed to find music you will love."
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"Live365 is the world's largest radio network on the Internet, with over 15,000 stations spanning myriad genres and created from over 150 countries. We have over three million unique listeners per month worldwide. Our content and stations are syndicated in iTunes, RealPlayer, WindowsMediaPlayer, and Windows Media Center, and various other websites."
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"Your source for mp3-based Karaoke music - fun for all the family! The newest hits and classics in professionally produced instrumental sing-along tracks. Download FREE sample songs, and enjoy fully licensed musical content for immediate purchase and download. New songs are constantly added."
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