Apple has introduced iTunes Preview, a new way to share iTunes music information using a Web browser, and also announced the iTunes Best Album & Song 2009 (UK) shortlists.The new iTunes Preview feature replaces the old behaviour of the service. In the past, whenever you sent a link to a song or album from the iTunes Store to another person, clicking that link would automatically open up iTunes - or generate a pester message urging the other party to install iTunes.Now this doesn’t happen anymore: instead, information about the track or other item pops up in a browser window that’s entitled iTunes Preview. (Though you don’t get to listen to the track samples on the page, for that you still need iTunes). Right now this feature only works for music,