1) Music website 
Singingfish was an audio/video search engine that powered audio video search for Windows Media Player, WindowsMedia.com, RealOne/RealPlayer, Real Guide, AOL Search, Dogpile, Metacrawler and Singingfish.com, among others. Launched in 2000, it was one of the earliest and longest lived search engines dedicated to multimedia content. Acquired in 2003 ...