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EveryCircuit is your friend whether you study circuit theory or design circuit boards. Build a circuit, click play, and enjoy circuit schematic animated with real-time simulation results.

Quora is a continually improving collection of questions and answers created, edited, and organized by everyone who uses it.

Free Electronic projects, schematics, diagramms, pcb, free electronic software and hobbilist electronics resources, electronic community and much more

GlobalSpec is a search engine and information resource for the engineering, industrial and technical communities. We help you quickly find industrial parts, specifications and services.

AWR is a National Instruments company. AWR high-frequency design software is used for RF, microwave and electromagnetic circuit design.

Circuit simulation, free circuit simulation software download

Articles about robots and robotic resources. We are free to write the best articles about robots, and best articles about robotic resources.

MAKE brings the do-it-yourself mindset to all the technology in your life. MAKE is loaded with exciting projects that help you make the most of your technology at home and away from home. This is a magazine that celebrates your right to tweak, hack, ...

Visual Components,3D modeling and simulation software for factory automation

LinuxQuestions.org offers a free Linux forum where Linux newbies can ask questions and Linux experts can offer advice. Topics include security, installation, networking and much more.