Arcbotics- Hexy build and programming instructions
Allelectronics- Where you can buy the LED flashing kit.
Adafruit- One of my favorite websites where you can buy electronics.
Deezmaker- home of the Bukobot.
Make Magazine- awesome magazine that is great for ideas.
LA Robotics Club- The LA Robotics Club is an awesome way to find people who share interests in robotics and programming.
Inkscape- a vector-based graphic designing software which I use to draw files to laser cut.
Arduino- This is the link to the official Arduino website. Click here to go to my review of the Arduino.
Youmagine - A free 3D file-sharing site that people upload their 3D designs to so other people can download and print them!