3D Printing
Shapeways
http://www.shapeways.com/
Send out your designs for 3D printing
Arduino
Arduino
http://www.arduino.cc/
Tutorials and printouts for arduinos.
Low Tech sensors and Actuators
http://lowtech.propositions.org.uk/lowtech-sensors-and-actuators.pdf
Tutorials for interacting with toys, fog machines and other devices using microcontrollers like the Arduino.
Mozzi
http://sensorium.github.io/Mozzi/
Sound synthesis library for Arduino
Artists
Ken Rinaldo’s List of Artists
http://newmediaartist.org/index.php?view=article&catid=20%3Achapter-18&id=161%3Achapter-18&option=com_content&Itemid=22
One mans list of artists using technology and interactivity
Audio Resources
Wikipedia Synthesizer
http://en.wikipedia.org/wiki/Synthesizer
Good summary of what synthesizers do.
Synthzone
http://www.synthzone.com/
Good list of most synths and music hardware ever made.
Freesound
https://www.freesound.org/
Open source sound samples.
Electronics
Electronics 101
http://www.electronicstheory.com/html/e101-1.htm
Electronics Theory tutorials.
Multimeters
https://learn.adafruit.com/multimeters
Good tutorial on multimeters
General
Interactive Electronics for Artists and Inventors by Ken Rinaldo
http://newmediaartist.org/index.php?option=com_content&view=frontpage&Itemid=
A great resource for all sorts of information related to interactive art and electronics
Hardware
Global Spec List of Mechanical Components
http://www.globalspec.com/productfinder/mechanical_components
Great list and description of all sorts of hardware.
Instrument Building
Windworld
http://windworld.com/
Experimental Musical Instruments website, Lots of books, materials and tools for making musical instruments
Odd Music
http://www.oddmusic.com/
Gallery of unique musical instruments
Controllerism
http://www.controllerism.com/
Great website devoted to new music controllers and the people using them.
Physical Computing
Tom Igoe’s blog
An excellent blog by Tom Igoe on Physical Computing
http://www.tigoe.net/blog/