Atlanta Hobby Robot Club

Robot Links

Kits USA: Cheap robot kits and many others
Lego Mindstorm: Lego based robot kits
Vex Robotics: Erector Set style robot building kit
Parallax: Robot kits and parts
Jameco's Robot Store: Robot kits and parts
Lynxmotion: Walking robot kits
The Robot Room: David Cooks site has lots of robot projects
Society of Robots: Many useful robot tutorals, calculators and "how to" info
Spark Fun Tutorials: 70+ tutorials on a many electronics and robot subjects
Ohms Law Calculators
Charlesg's electric vehicle newbie cheat sheet: Beginners guide to building small electric vehicles
A Guide to Robotics Technology: Overview of what a robot is and does

Arduino home page: Open source hardware/software microcontroller development system
Arduino tutorials: How to program and use the popular Arduino platform
Omnia Creator: Free replacement IDE for Arduino and Propeller with graphical sensor data displays. Win/Mac/Linux

Acroname Robotics
Adafruit Industries:
The Robot Shop: Robot Kits, Parts, sensors, indoor localization, beacons and more
GoBilda: Robot chassis kits, hardware, gearmotors, motor and servo controlers, servos, gears, pullys etc.
Banebots: Wheels, motors,gearboxes, electronics etc
Dimension Engineering: Regenerative PWM Motor Controllers, Radio Control & Sensors
Jameco's Robot Store: Robot kits and parts
Lynxmotion, Inc. Robot Kits, Motors, Servos and more
Nerd Kits: Learn about electronics and embeded systems wit kits
Parallax: Basic Stamp Controllers and Robot Kits
Pololu: PArts and kits plus Custom Laser Cutting - wood, acrylic, ABS, nylon, delrin, and more
Trossen aobotics: Robot kits, motors, sensors, robot arms, controllers
Servo City: Servos, motors, hubs, wheels, gears, sprockets, chain, R/C systems, etc.
Spark Fun: Sensors, kits, components, gps etc
The Robot Marketplace: Combat Robot parts, materials, motors, wheels, speed controllers, batteries, chargers
NKC Electronics: Open source hardware. Arduino boards and more
Circuit Specialists: Stepper motors, test equipment, electronic parts etc.
Battery Space: Batteries and chargers

Durafix Easily braze aluminum with this rod and a torch
Harbor Freight: Cheap tools
McMaster-Carr Massive inventory of industrial tools, materials and equipment
MSC Industrial Supply Metalworking Tools, Equipment, Materials, and Industrial Supplies
Northern Tool: Tools and equipment
Stock Drive Products High quality gears, belts, pullys, motors etc
Travers Tool Metalworking Tools, Equipment and Industrial Supplies
Granger: Industrial tools and equipment
Micro-Mark: Small tools for model makers
Automation Direct Industrial controls and related products

Online Conversion (Unit conversion)
Instructables (Many how-to articles on a wide variety of subjects)
Datasheets360 Datasheets for electronic parts
Element-14 (Design engineer community)
Electronics Calculators (Many useful electronics calculators)
Discover Circuits (Thousands of circuits and schematics)
Paul Falstad's wonderful math & physics simulation applets
TechLib Unusual electronic circuits (audio amps, radiation detectors, VLF receivers, geiger counter, etc)
Low pass and high pass active filter design tool
Bandpass active filter design tool
LC Filter design tool (Lowpass, Highpass, Bandpass and Bandstop with frequency plots)
Online analog active filter wizard Low and high pass filter design tool from Analog Devices
Lego motors evaluated and compared
Online callculators and converters
Datasheet Catalog ( Online datasheet source for semiconductors & components)
Linear design tools ( LTspice and others, Windows only) LTspice Yahoo user group