It’s not too challenging to find a resistor through Google or on Amazon, but there are a few online retailers that reliably cater exclusively to makers and their projects. These sites not only sell Arduino, Raspberry Pis, and accessories, but they also help shoppers discover cool new projects by featuring interesting sensors, kits, and books. Below is my top five list (plus one) of great online retailers for electronics makers.
Spark Fun Electronics and Maker Shed
Spark Fun and Maker Shed are very similar sites – both worth checking for a given project. They both carry great curated selections of books, Arduino-related supplies, other components, Raspberry Pis, and kits. Noting its affiliation with Make Magazine, Maker Shed has more in the way of kits and educational materials while Spark Fun is perhaps stronger in components. Both are great sites with whom I’ve had very positive customer experiences.
Adafruit grew as an electronics kit developer, but has grown into open source hardware development since that time – today they sell branded Arduino shields, and it recently developed the Arduino Micro in conjunction with Arduino. Its products include kits and components for Arduino, mbed, Raspberry