Created: weblink

The Complete Beginners Guide to the Arduino. Tutorial as pdf  file and example sourcecode are available for download.

Arduino compatible boards. Seeeduino, RainbowDuino

A brilliant tutorial, I think, with video about motors ad microcontrollers from nerdkits.com. Learn about how a motor works, EMF, use of flyback diodes, control a motor from a microcontroller, PWM etc.

Everything You always wanted to know about H-Bridges but were afraid to ask ;-). A very good article about H-Bridges especially MOSFET H-Bridges.

There can also be found schematics, layout and sourcecode for the µModule H-Bridge

Wiring and sourcecode examples for Devantech sensors and controllers, like SRF05, MD23.

• PICAXE examples
• Arduino examples

UK electronics online shop.

• Electronic components
• Polymorph
• Motors
• Microbug Kits

UK shop for robotics & electronic parts, PIC, ARM and Atmel CPUs. 

Partial manufacture list:

• Pololu
• Sparkfun
• Arduino
• Olimex 
• Maxbotix