(18) You will not discuss, suggest, engage, or encourage any ILLEGAL ACTIVITIES. Links provided to locations that deal with any such activity are also expressly forbidden.
If you are interested in buying some music online the iTunes store is pretty good, though personally I do not like how it limits you to just one lossy format and limits your ability to move the music around. MSN has a store now, Napster does (I think), Musicmatch does, all of those are very good legal alternatives. Any discussion of the illegal ones is not allowed here.