Pandora is one of the musical marvels of the Internet age. It’s an algorithm-based website that allows you to listen to any musical artists, bands, and songs that you like. By each song, you can click a “thumbs up” or a “thumbs down” sign. When you click the “thumbs up” sign, it plays more music like what you just heard. If you click the “thumbs down” sign, Pandora will take that song out of rotation or skip that song and bring up a different song for you to judge.