Look under the Electric Arts category at [http://del.icio.us/PrattInteractive] for many more links.

SUPPLIERS

Arduino
Open-source electronics prototyping platform for artists, designers, hobbyists for interactive objects or environments. Built upon the Processing platform. Also a mini version and a Bluetooth version. Very supportive user community. Check out the Playground.

Wiring
Programming environment and electronics i/o board, also built upon the Processing platform.

INFORMATION

LED Wizard
Compute what resistor values you need in your LED circuit. Fantastic little tool.

Soldering Tutorial Links on Lady Ada's site

"Freeduino's" Arduino Links Comprehensive cross-listings of how-to's, code, etc.

Basic Explanation of Electronic Parts
Useful and remarkably well-translated from the original Japanese version.

Discover Circuits
Huge collection of electronic circuit schematics.

Steven Wilson's Experimental Art-Tech Links

DISTRIBUTORS

adafruit industries
Superb range of do-it-yourself kits PLUS Arduino boards and accessories.

Jameco
Their prices are sometimes lower than Digikey, and they also stock some parts hard to find from other sources.

Sparkfun
Fun, indeed, but no sparks unless of course you wire something wrong.

DigiKey
Immense inventory, I usually wind up buying from them, but try to order at least $25 worth at a time otherwise there is an extra fee.

Happ Controls
Industrial-strength pushbuttons and arcade controls.

Acroname
This is their sensors page, but browse their site for other nifty robotics-oriented things.

HVW Tech
Also a good source of sensors; their 4-pack of Sharp infra-red rangefinders is a good buy.

CTI-Texas
Best price I've found anywhere for breadboards and jump-wire packs.