Powered by the Music Genome Project, this music lover’s site treats your ears to an endless stream of songs based upon your musical likes and dislikes. All you do is type in a song or band that you enjoy and Pandora.com spits out song after song that is of the same genre based on numerous categories spanning from melody to lyrics. Your stream of music, or radio station as it is called on Pandora, is always updating as you rate every song that plays with a thumbs up or thumbs down. This is a great way to discover some new lesser known groups that you will probably love. Oh yea, it’s free cheap skate.