B & B Electronics Manufacturing Company
Black Box - Great source for that Box. . .
Connect Tech Inc. - Converters
Control Technology Corporation - Process control, Motor Control, Comm & I/O for industrial PCs
Emerging Technologies, Inc. - High Bandwidth Adapters for Servers
Global Test Supply - Sells, rents and leases electronic test and measurement equipment.
Hayes Microcomputer Products, Inc. - Modems
Hewlett-Packard - Test Equipment & Office Equipment
National Instruments - Test & Data Acquisition Equipment
Panasonic - Consumer Electronics
Racal - Modems
RCA - Electronics
Sony - Consumer Electronics and Electronic Components
Telebyte - Communications Equipment
U.S.Robotics - Modems

Electronic Parts Brokers

Alltronics - buys and sells electronic components and equipment
Central Resources Inc. - Electronic Components Exchange
Electronix Express (A Division of R.S.R.Electronics, Inc.) - Components & Equipment
Excel - 911 of Electronic Components
Parts-OnLine

Electronic Process

3M Innovation Network - Process Materials
Advanced Surface Technology- Surface treatments
Alpha Metals - Soldering Stuff
D Aircraft - Sealant, Comformal coatings, Adhesives. . .
IDI - Fluxbusters Probes
Omni Graphics Ltd. - Printed Circuit Board (PCB) Fabrication
Miller-Stephenson Chemical Company - Process Chemicals
TechSpray - Comformal Coatings

Electronics Info & Standards

All About Oscilloscopes - Good info about Scopes and Test Equipment
American National Standards Institute - ANSI
Bell Laboratories - What can I say?
Bellcore - Telecom standards
Electronics Source Book ONLINE - Find Manufacturers, Reps, & Distributors
Circuit Sage - A Great Collection of Design Ideas & Circuits
Connector Info (Black Box) - Standard Connector Definitions
E.E. Network Sites - News
EEM On-Line - Electrical Equipment Manufacturers
EET Product File - EETimes Products on line
electroBASE - Distributors, Reps & Manufacturers Listings
Electronic Design Pages - Trade Publication
Electronic Industries Association - EIA Standards
Electronics Source - Trade publication
Hearst Business Publishing - Trade Magazine Publisher
IC Master Online - All about ICs
Interface Info (Black Box) - Standard Interface Definitions
IVF - Electronic Research
John's Electrical Engineering Page - General Info. . .
Opamp Books - Technical Books
QuestLink Technology - Good Info
The National Electrical Code - NEC

Power Supplies

APS - Advanced Power Solutions
Artesyn Power Products
Ascom - Custom Power Supplies
Ault - External Power Supplies
Autec Power Systems
Best Tech - Power Supplies
Calex Mfg. Co., Inc.
CDI - Conversion Devices
CPI Products (ArtesynTechnologies) - AC/DC & DC/DC Power Supplies
DATEL Inc. - Power Supplies, Panel Meters, A/D Components and Analog I/O Boards
Elpac Power Supplies
ETA
EOS Corporation -  Efficient Power Conversions
International Power Devices, Inc. - (IPD) Homepage
IPS - (International Power Sources)
NMB - PC power supplies
Phihong - Power Supplies
POWER-ONE - POWER SUPPLIES, AC/DC, DC/DC CONVERTERS
Powercube - Providing Power Solutions
Power General / Nidec
PowerStream - Custom Power Supplies, Battery Chargers, UPS
Power Trends - Isolated & non-isolated DC/DC converters
PSMA - The Power Sources Manufacturer's Association
PSMA MEMBERS - Members List
Switching Systems International - Switching Power Supplies
UNIPOWER NORTH AMERICA
Universal Micro Electric
Vicor - High Power DC/DCs
Wall Industries, Inc.
www.unitrode.com: +"High Voltage"

Semi-Cond Manufacturers Search Sites

EENet Semiconductor Manufacturers WWW Sites - Semi-Conductor Manufacturers Links
ITU SemiconductorManufacturer's Links - Semi-Conductor Manufacturers Links
RWCS Semi-Conductor Manufacturer Directory - A good collection if I must say so myself.
Semi-Conductor Manufacture Links - A most complete collection.