• Recommendations for nylon gears - use no lubrication. Others recommend “Labelle 106”, “Molykote EM50”, maybe “INOX MX6”.
• 4 Types of Lubricants and How to Use Them

• DC motor servo driver chips - old: SN76604/SN28654=B654, ZN409, NE544 1, newer: NJR2611, M51660, M52461, M64611, AA51880
• H-Bridge drivers - L298
• Hobby Servos, ESCs And Tachometers (AA51880 with external MOFET circuit)
• m51660l and l298d connections for DIY servo
• How servo motors work?
• Radio Control Servos and Speed Control
• Converting an Ordinary DC Motor to a Servomotor
• Magnetic Rotary Encoder v1.0
• Make Your Own Low-cost Servo
• DIY Servo Motor
• MC33030 DC Servo Motor Controller/Driver

• Drive Motor Sizing Tutorial and calculator
• Making a FET "H" bridge

• Low cost robot arm.

• Using the I2C Bus.

• IR navigation beacons

• Intelligent Camera for Object Identification and Tracking.

• InfraRed robotic ideas.

• Ultrasound and Microcontroller Applications.
• Building an Arduino Robot, Part V - Avoiding Obstacles.

• Robot Operating System (ROS), collection of software frameworks for robot software development.
  • ROS, Robot Operating System.
• SLAM, Simultaneous _localization and mapping.
• Player Project, project to create free software for research into robotics and sensor systems.
• Carmen Toolkit, Carnegie Mellon Robot Navigation Toolkit.
• G-Code library
• The Code Store, Robot Builder's code example store.
• Building an Arduino Robot, Part IV - Firmware.
• Basic Servo Motor Controlling with Microchip PIC Microcontroller - Light seeking behaviour

• SAM - Somewhat Autonomous Machine (Arduino)
• Autonomousl SLAM robot
• Brainless robot circuits
• Simple infrared obstacle avoiding robot control.

• Oddbot's LMR pages

If any referenced page no longer exists, try looking for its URL on http://archive.org.
Robotshop.com incorporates LetsMakeRobots.com (LMR), GoRobotics.net, and Lynxmotion.net so if looking for links from Robotshop.com to old discussions you might need to hunt in the archives of those sites.