Alex dragulescu : Experiments and explorations of algorithms
Arduino Knowledge : An evolving index of practical subjects for the Arduino, as found in the Arduino site, Playground wiki, forum and that big WWW thing
Kaleido is a tool that is designed to help visual-thinkers program. You can use Kaleido to create personally meaningful visuals for your code. Kaleido allows individuals to plan, organize, and navigate code in the idiosyncratic way we each think.