Servo covering the world of personal robotics
https://www.servomagazine.com/
Nuts & Volts is written for the hands-on hobbyist, design engineer, technician, and experimenter. The diversity of subjects appeals to all levels of experience and spans such topics as amateur robotics, circuit design, lasers, computer control, home automation, data acquisition, new technology, DIY projects, electronic theory, analog, and myriad microcontroller
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Design World
https://www.designworldonline.com/category/webinars/
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Anyone can publish information on the Internet. Before using information you find on the Internet for assignments and research, it is important to judge its accuracy and to establish that the information comes from a reliable and appropriate source.