» Cobra Electronics, Inc.    Designs and markets two-way communication and electronic products, such as citizen band (CB) radios, radar detectors, and phones. Investor relations, careers and online shopping. (Nasdaq: COBR)    http://www.cobraelec.com/

» Mark I Electronics    Offers a variety of home and auto electronics equipment, including stock material, reference books and site resources for do-it-yourself build projects. Online orders are available.    http://www.mark1electronics.com/

» Satellite Dish Online    Offers DirecTV satellite television dish systems for first time buyers. Pricing, packages, and channel overview provided.    http://www.satellitedish.us/

» Triode Electronics    Specializing in vintage electron tubes and tube amplifier parts. Also provides online ordering.    http://www.triodestore.com

» Unlimited Sound and Security    Sells and installs car stereos, alarms, phones, car amplifiers and speakers.    http://www.angelfire.com/il2/unlimitedsound/

» Van L SpeakerWorks    Sells audiophile quality home stereo and home theatre system product lines, along with manufacturing and selling the company's own speaker line. Specialists in repair service of loudspeakers.    http://www.vanlspeakerworks.com/