Recommending music/tones/etc. via iTunes App

All right, so this used to work but now it doesn't. I was just wondering if anyone else was experiencing this and, if so, if there is a workaround. When I, for example, clikc on a ringtone to get its details, I would like to share that ringtone with a friend who also has an iPhone. So, I try to click the "Share" button. While this used to work just fine earlier (maybe in earlier versions of iTunes?), it doesn't seem to work now. Now, when I tap the "Share" button, absolutely nothing happens. Help, please!