Licensing regulations and less than perfect audio quality have long hindered the progress of music publishing on the Web. But that's not to say the music industry is Net-shy. Cyberspace resounds with samples from the Shamen to the Spice Girls, not to mention radio stations and online CD vendors. Liz Morrell looks at the Web as a marketing tool for the music industry and tunes in to the companies which are starting to see a profit.