Robot Magazine - Good source of Information.
These guys started me on the way in my robot journey, with Parallax stamps, good source of parallax and robotics equipment. Source of the new propeller chip. Good backup too.
These guys pioneered the PICAXE chips and single handedly revolutionized how robotics was taught in education, making it both cheap and accessible to the young mind. Always my first call for bits.
Good support too.
Another good supplier of bits, lots of materials and electronics bits. Superb circuit board etching systems.
Very good source of robot bits.
Middlesex University - Teaching Resources
Good source of motors and materials.
