Electronics

Analyze electronic circuits
A site where Electrical Engineering, Technology and High school students can analyze electronic circuits and math problems online. Result in detailed step-by-step format on how results were obtained in few seconds.

CNC controllers and electronic systems
Atelier Robin: CNC controllers and frequency generators : custom hardware, software development (J2ME,JDBC,RMI, C++), digital design,CPLD,FPGA and micro controller programming for electronic systems.

Home Security Cameras
Ez-Toyz Inc. Surveillance Solutions, is a leading surveillance solution provider for homes and businesses throughout the United States, Canada, Mexico, Puerto Rico, and many other countries worldwide. 

Open Circuits : open source electronics
This site is a wiki for sharing open source electronics knowledge, schematics, board layouts, ports and parts libraries.

Seltech international
Seltech is a specialized international distributor of NXP speakers & receivers, ECM microphones, NXP silicon tuners & demodulators, Nutune can tuner modules, cathode ray tubes and coils for industrial, communications, medical, audio, video, RF.

Sparkfun electronics
Sparkfun is a company that likes to share, enable, and have fun with electronics. She design boards and provide tools so that engineers, students, and hobbyists can play with microcontrollers.