Developers:

Clearpath Robotics Inc

Willow Garage, Inc.

Home pages:

clearpathrobotics.com/turtlebot4

clearpathrobotics.com/turtlebot_2

Turtlebot Euclid - wiki.ros.org/Robots/Turtlebot-Euclid

turtlebot.com

youtube.com/TurtleBotVideo

TurtleBot on Wikipedia