AllTheWeb
http://www.alltheweb.com/

AltaVista
http://www.altavista.com/

Ditto (images only)
http://www.ditto.com/

Google Images (images only)
http://images.google.com

Kazaa Media Desktop (MP3 only)
http://www.kazaa.com/

Lycos Pictures and Sounds
http://multimedia.lycos.com/

MIDI Explorer (MIDI sound files only)
http://www.musicrobot.com/

The Music Finder (artists & songs, not files)
http://www.music-finder.net/

Picsearch (images only)
http://www.picsearch.com/

Singingfish (audio/video only)
http://www.singingfish.com/

SpeechBot
http://speechbot.research.compaq.com/

PublicRadioFan.Com
http://www.publicradiofan.com/

Radio-Locator
http://www.radio-locator.com/

TheFeedRoom
http://www.feedroom.com/