With the downfall(?) of Napster, what is a poor audiophile to do to check out new artists without forking out $30 (Australian) a pop per CD? Visit www.audiogalaxy.com of course.
Seriously, this service rocks. It utilises a client (though not like the rest reviewed), but relies on standard web integration for most of it's functions. It has everything napster had + more. It's simple and straight forward to use.
Some people I know have had difficulty logging on, though I have never experienced anything but bliss in using it. Well worth checking out.
Avail from www.audiogalaxy.com