musicplasma : the music visual search engine is exactly what it sounds like. It visually helps you find artists you might like. You enter an artist and it creates a maps that shows connections between artists in terms of artists that people tend to like. Search for “Nirvana”, and it’s not surprising that many Nirvana fans like the Foo Fighters. There are a number of other bands that match for Nirvana that might not be quite as obvious.