None of the three major subscription providers — Pressplay, Listen.com and MusicNet — work on Macintosh computers. That leaves iPod users going to free or advertising-supported music services. <A HREF="http://www.usatoday.com/tech/webguide/internetlife/2003-03-06-apple-music_x.htm" target="_new">http://www.usatoday.com/tech/webguide/internetlife/2003-03-06-apple-music_x.htm</A>