Monitor Data Acquisition Newsletter: Free monthly newsletter covers PC-based data acquisition and control. It brings news of the latest scientific software and in-depth discussion of test and measurement techniques. It also offers subscribers free software which lets them connect RS232 instruments to Windows programs like Excel

National Electrical Manufacturers Association: Developing standards for the electrical manufacturing industry

Underwriters Laboratories Inc.: Independent, not-for-profit product safety testing and certification organization. Testing products for public safety for more than a century