This page is a quick reference to important links including many posts which are important to read.
Posts
Learning Resources
Electronics
Circuits.io – A great site for intuitively learning about circuits from knowing nothing as a beginner to advanced topics.
Software
Arduino.cc – Obviously great for learning about the Arduino, they have tutorials, examples and a forum.
Documents
ASEE Rules – http://faculty.tcc.edu/PGordy/ASEE/
Online Shopping