Amplitude Official site. Includes description of features, basic instructions, artists whose songs are featured, network play and discussion forum. [Requires Flash player] http://www.us.playstation.com/games/scus-97258/

Harmonix Music Systems, Inc. Developer of Amplitude. Includes descriptions of projects, press releases and company background. http://www.harmonixmusic.com/

Gamespot Includes news, review, preview, movies and hints. http://www.gamespot.com/ps2/puzzle/amplitude/

GameSpot Review Rated 2.3/10 by Andy Deemer. "Wait for the next album, the next movie, the next TV special, or whatever. But don't bother buying this game." Reader reviews. 15 screen shots. http://www.gamespot.com/ps/puzzle/spiceworld/