I don't think your answer is responsive to the question. If I am reading the question correctly, the writer is asking for an explanation of the difference between collections, playlists, thumbs up, stations, songs, and so forth; and the usefulness of each one. I, too, have looked everywhere for this information and found nothing. It seems really strange that Pandora does not seem to understand the need for a complete discussion of the interrelationship between collections, playlists, etc., Alyssa: I disagree. The place to start is for Pandora to provide its subscribers with a comprehensive, well-organized user's manual. The "help" page is useless for this purpose. mod edit: format ... View more