iTunes Preview has been announced by as being released
http://www.pcworld.com/businesscenter/article/182065/apple_launches_itunes_preview.html
Also, i'm not sure when, but http://www.apple.com/trailers/ has been changed into the more recent finger friendly style.
It's accessible via iTunes Charts or via a link generated from the iTunes store copy link feature (so presumably will or soon will come from the share this link you can generate from an iPhone).
So you can search the catalogue of iTunes from a web browser. No audio previews yet, but they might well be adding in features over time. Currently there's a banners telling you to have iTunes to listen to/purchase the music.
http://www.pcworld.com/businesscenter/article/182065/apple_launches_itunes_preview.html
Also, i'm not sure when, but http://www.apple.com/trailers/ has been changed into the more recent finger friendly style.
It's accessible via iTunes Charts or via a link generated from the iTunes store copy link feature (so presumably will or soon will come from the share this link you can generate from an iPhone).
So you can search the catalogue of iTunes from a web browser. No audio previews yet, but they might well be adding in features over time. Currently there's a banners telling you to have iTunes to listen to/purchase the music.