Antex Electronics - makes sound cards, digital audio adapters and other products for music, audio/video post production, multimedia and PC-based applications.
AVM Technology, Inc. - designs and manufactures wavetable synthesis/ digital recording modules.
Creative Labs - Makers of audio hardware, featuring the Sound Blaster line.
Diamond Multimedia Europe: Audio Products - Featuring the Monster Sound and Sonic Impact sound cards
Digidesign - designs MIDI compatible sequencing, notation and digital audio recording software (Pro Tools); pro audio sound cards and systems.
Digital Audio Labs - pro quality analog and digital i/o. S/PDIF, DAT, etc.
ESS Technology, Inc. - next-generation PC audio solutions based on the ESS chip platform. PC audio accelerators.
MegaMan X's Soundcard History Museum
My Gravis Ultrasound Resource Guide - Lots of information on Gravis Ultrasound as well as drivers, programs, links.
Portland Music, Soundcards - Pro multi I/O's high speed digital recording interface/cards. PC and MAC commercial production tools.
Reveal - Download drivers for Reveal products
Review News: Sound Card Drivers - Very complete listing of links to sound card makers' driver archives
TerraTec - manufacturers of pro audio sound cards, digital I/O boxes, audio decoders, and other products.
The PC Technology Guide - Outlines the features and components of a modern PC sound card. Includes graphics, diagrams and an integrated glossary, making it particularly suited to the interested novice. This page is from The PC Technology Guide.
Voyetra Turtle Beach, Inc.
Yamaha - Computer Related Products: Sound Cards & Daughter Boards.
Yamaha WaveForce
ZDNet UK: Wavetable Sound Cards Comparative Review: Gravis UltraSound Plug & Play Pro