Stereo Link  
   Offers USB audio products compatible with all formats: mp3, CD, Liquid Audio, Quicktime, and streaming. True Plug and play for Windows, Mac and Linux.
   http://www.stereo-link.com/

Vortex of Sound  
   For users of Aureal Vortex sound cards (Vortex 1, Vortex 2, or Vortex Advantage) and A3D. Featuring news, drivers, tech help, game patches, and other information on 3D audio technologies.
   http://www.vortexofsound.com/

Vpedal  
   Offers a foot pedal designed to connect to a computer to control the playback of MP3 and Wav sound files.
   http://www.vpedal.com/

M-Tech  
   Manufacturer of computer speakers, headphones, microphones, switch box, telephone cables.
   http://www.m-tech.com.hk/

Mediatech Industrial Inc.  
   Multimedia microphone and headset manufacturer.
   http://www.mediatech.com.tw/

MP3elf.net  
   Ethernet attached MP3 player with open source software and hardware.
   http://mp3elf.net

Quadravox, Inc.  
   Specializes in stand-alone sound output systems and tools needed that support them.
   http://www.quadravox.com/

Kitstream  
   Components for MP3 jukebox players based around IDE ATA compliant hard drives, IR remote controls, LCD displays.
   http://www.elink.net.au/~lindsay

Slim Devices, Inc.  
   Makers of the SliMP3 device, used to stream music over ethernet from a PC.
   http://www.slimdevices.com/

Omega Studio  
   Overview and features description for this recording system from Lexicon. Screenshots, system requirements and hardware specifications.
   http://www.lexiconpro.com/Omega/index.asp