Spotted Leopard

The inventions relate in general to web services. A set of media items (e.g., songs) from a group of items is presented to a user for rating. Based on the user’s ratings and characteristics (e.g., type of music) of the rated files, other items from the group are recommended to the user for playing (e.g., through mobile phone). The technologies may be implemented as on-line music distribution services or mobile apps.