Yahoo launched a free Web audio search service that helps users find, hear and buy everything from music downloads and podcasts to interviews and newscasts. It seems that yahoo is into giving free stuffs, first it was konfab now it is a web audio search service.

Yahoo Audio Search, at http://audio.search.yahoo.com, is still in testing and gives users access to more than 50 million audio files as Yahoo beefs up its entertainment offerings.

For example, a search for “Green Day” yields a list of the band’s albums, song samples and links to download services, including Yahoo’s own music service, Apple Computer Inc.’s (AAPL.O: Quote, Profile, Research) iTunes, Rhapsody from RealNetworks Inc. (RNWK.O: Quote, Profile, Research) and Napster Inc. (NAPS.O: Quote, Profile, Research).

The service also taps independent publishers and the Web, helping users find such things as music videos, reviews and photographs of the artists.