Pandora: A streaming-music service that delivers what you like to hear

Available to users in the U.S. only at the present time, this website is an innovative approach to Internet radio. Visitors enter the name of their favorite artist or song and receive a stream of music that mirrors their tastes in music. The system generates a playlist of songs resulting from an analysis of 400 musical elements, such as vocal style, lyrics, composition, form and melody represented in the original choice. In essence, listeners have a “radio station” playing only music they like to hear. Of course, it is possible to fine-tune a “station” by de-selecting unwanted songs from the playlist; the system will adjust to take account of this change. Users may create up to 100 separate stations, reflecting their interest in more than one type of music. No downloads are required. The service is free, supported by advertisements. Users may opt for an ad-free paid subscription to the service.

Check out the site: http://www.pandora.com/